161274337 has 24 divisors (see below), whose sum is σ = 198469440. Its totient is φ = 130304160.

The previous prime is 161274331. The next prime is 161274341. The reversal of 161274337 is 733472161.

It is not a de Polignac number, because 161274337 - 2¹¹ = 161272289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161274331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289263 + ... + 289819.

It is an arithmetic number, because the mean of its divisors is an integer number (8269560).

Almost surely, 2^161274337 is an apocalyptic number.

It is an amenable number.

161274337 is a deficient number, since it is larger than the sum of its proper divisors (37195103).

161274337 is a wasteful number, since it uses less digits than its factorization.

161274337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 894 counting only the distinct ones).

The product of its digits is 21168, while the sum is 34.

The square root of 161274337 is about 12699.3833314850. The cubic root of 161274337 is about 544.3209982404.

The spelling of 161274337 in words is "one hundred sixty-one million, two hundred seventy-four thousand, three hundred thirty-seven".