161170457 has 12 divisors (see below), whose sum is σ = 193533696. Its totient is φ = 133688520.

The previous prime is 161170441. The next prime is 161170547. The reversal of 161170457 is 754071161.

It is not a de Polignac number, because 161170457 - 2⁴ = 161170441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161170417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51533 + ... + 54570.

It is an arithmetic number, because the mean of its divisors is an integer number (16127808).

Almost surely, 2^161170457 is an apocalyptic number.

It is an amenable number.

161170457 is a deficient number, since it is larger than the sum of its proper divisors (32363239).

161170457 is a wasteful number, since it uses less digits than its factorization.

161170457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106148 (or 106141 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 161170457 is about 12695.2927102923. The cubic root of 161170457 is about 544.2041038209.

The spelling of 161170457 in words is "one hundred sixty-one million, one hundred seventy thousand, four hundred fifty-seven".