161457594 has 16 divisors (see below), whose sum is σ = 323048640. Its totient is φ = 53796960.

The previous prime is 161457589. The next prime is 161457601. The reversal of 161457594 is 495754161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17574 + ... + 25134.

It is an arithmetic number, because the mean of its divisors is an integer number (20190540).

Almost surely, 2^161457594 is an apocalyptic number.

161457594 is an abundant number, since it is smaller than the sum of its proper divisors (161591046).

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

161457594 is a wasteful number, since it uses less digits than its factorization.

161457594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11125.

The product of its digits is 151200, while the sum is 42.

The square root of 161457594 is about 12706.5964758467. The cubic root of 161457594 is about 544.5270919407.

The spelling of 161457594 in words is "one hundred sixty-one million, four hundred fifty-seven thousand, five hundred ninety-four".