161458957 has 8 divisors (see below), whose sum is σ = 177260832. Its totient is φ = 145844400.

The previous prime is 161458951. The next prime is 161458961. The reversal of 161458957 is 759854161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161458957 - 2¹⁵ = 161426189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161458951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45019 + ... + 48472.

It is an arithmetic number, because the mean of its divisors is an integer number (22157604).

Almost surely, 2^161458957 is an apocalyptic number.

It is an amenable number.

161458957 is a deficient number, since it is larger than the sum of its proper divisors (15801875).

161458957 is a wasteful number, since it uses less digits than its factorization.

161458957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93659.

The product of its digits is 302400, while the sum is 46.

The square root of 161458957 is about 12706.6501092932. The cubic root of 161458957 is about 544.5286242075.

The spelling of 161458957 in words is "one hundred sixty-one million, four hundred fifty-eight thousand, nine hundred fifty-seven".