161437059 has 24 divisors (see below), whose sum is σ = 267717632. Its totient is φ = 91828080.

The previous prime is 161437037. The next prime is 161437097. The reversal of 161437059 is 950734161.

161437059 is a `hidden beast` number, since 1 + 614 + 37 + 0 + 5 + 9 = 666.

It is not a de Polignac number, because 161437059 - 2⁹ = 161436547 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (161437009) 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, 8304 + ... + 19794.

Almost surely, 2^161437059 is an apocalyptic number.

161437059 is a deficient number, since it is larger than the sum of its proper divisors (106280573).

161437059 is a wasteful number, since it uses less digits than its factorization.

161437059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11727 (or 11724 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 161437059 is about 12705.7884052899. The cubic root of 161437059 is about 544.5040057180.

The spelling of 161437059 in words is "one hundred sixty-one million, four hundred thirty-seven thousand, fifty-nine".