169496145 has 168 divisors, whose sum is σ = 387263016. Its totient is φ = 70543872.

The previous prime is 169496143. The next prime is 169496161. The reversal of 169496145 is 541694961.

It is a happy number.

169496145 is a `hidden beast` number, since 16 + 9 + 496 + 145 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4322241 + 165173904 = 2079^2 + 12852^2 .

It is not a de Polignac number, because 169496145 - 2¹ = 169496143 is a prime.

It is a super-2 number, since 2×169496145² = 57457886339722050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 169496145.

It is not an unprimeable number, because it can be changed into a prime (169496143) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 2321829 + ... + 2321901.

It is an arithmetic number, because the mean of its divisors is an integer number (2305137).

Almost surely, 2^169496145 is an apocalyptic number.

169496145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

169496145 is an abundant number, since it is smaller than the sum of its proper divisors (217766871).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169496145 is an equidigital number, since it uses as much as digits as its factorization.

169496145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 101 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 169496145 is about 13019.0685150667. The cubic root of 169496145 is about 553.4179930060.

The spelling of 169496145 in words is "one hundred sixty-nine million, four hundred ninety-six thousand, one hundred forty-five".