169601145 has 32 divisors (see below), whose sum is σ = 316735488. Its totient is φ = 75880128.

The previous prime is 169601143. The next prime is 169601147. The reversal of 169601145 is 541106961.

It is an interprime number because it is at equal distance from previous prime (169601143) and next prime (169601147).

It is not a de Polignac number, because 169601145 - 2¹ = 169601143 is a prime.

It is a super-2 number, since 2×169601145² = 57529096770622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (169601141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12249 + ... + 22118.

It is an arithmetic number, because the mean of its divisors is an integer number (9897984).

Almost surely, 2^169601145 is an apocalyptic number.

169601145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

169601145 is a deficient number, since it is larger than the sum of its proper divisors (147134343).

169601145 is a wasteful number, since it uses less digits than its factorization.

169601145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34429.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 169601145 is about 13023.1004372999. The cubic root of 169601145 is about 553.5322471173.

The spelling of 169601145 in words is "one hundred sixty-nine million, six hundred one thousand, one hundred forty-five".