161437058 has 4 divisors (see below), whose sum is σ = 242155590. Its totient is φ = 80718528.

The previous prime is 161437037. The next prime is 161437097. The reversal of 161437058 is 850734161.

161437058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 850734161 = 1879 ⋅452759.

It can be written as a sum of positive squares in only one way, i.e., 160098409 + 1338649 = 12653^2 + 1157^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40359263 + ... + 40359266.

Almost surely, 2^161437058 is an apocalyptic number.

161437058 is a deficient number, since it is larger than the sum of its proper divisors (80718532).

161437058 is an equidigital number, since it uses as much as digits as its factorization.

161437058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80718531.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 161437058 is about 12705.7883659378. The cubic root of 161437058 is about 544.5040045937.

The spelling of 161437058 in words is "one hundred sixty-one million, four hundred thirty-seven thousand, fifty-eight".