145466161 has 8 divisors (see below), whose sum is σ = 154425960. Its totient is φ = 136551168.

The previous prime is 145466131. The next prime is 145466171. The reversal of 145466161 is 161664541.

It can be written as a sum of positive squares in 4 ways, for example, as 30869136 + 114597025 = 5556^2 + 10705^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145466161 - 2¹¹ = 145464113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145466131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4386 + ... + 17611.

It is an arithmetic number, because the mean of its divisors is an integer number (19303245).

Almost surely, 2^145466161 is an apocalyptic number.

It is an amenable number.

145466161 is a deficient number, since it is larger than the sum of its proper divisors (8959799).

145466161 is a wasteful number, since it uses less digits than its factorization.

145466161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22403.

The product of its digits is 17280, while the sum is 34.

The square root of 145466161 is about 12060.9353285722. The cubic root of 145466161 is about 525.9211775945.

The spelling of 145466161 in words is "one hundred forty-five million, four hundred sixty-six thousand, one hundred sixty-one".