161474657 has 16 divisors (see below), whose sum is σ = 168668160. Its totient is φ = 154484928.

The previous prime is 161474633. The next prime is 161474669. The reversal of 161474657 is 756474161.

It is a cyclic number.

It is not a de Polignac number, because 161474657 - 2¹⁴ = 161458273 is a prime.

Its product of digits (141120) is a multiple of the sum of its prime divisors (560).

It is not an unprimeable number, because it can be changed into a prime (161471657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582803 + ... + 583079.

It is an arithmetic number, because the mean of its divisors is an integer number (10541760).

Almost surely, 2^161474657 is an apocalyptic number.

It is an amenable number.

161474657 is a deficient number, since it is larger than the sum of its proper divisors (7193503).

161474657 is a wasteful number, since it uses less digits than its factorization.

161474657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560.

The product of its digits is 141120, while the sum is 41.

The square root of 161474657 is about 12707.2678810199. The cubic root of 161474657 is about 544.5462733209.

The spelling of 161474657 in words is "one hundred sixty-one million, four hundred seventy-four thousand, six hundred fifty-seven".