74170161 has 48 divisors (see below), whose sum is σ = 122181696. Its totient is φ = 44680896.

The previous prime is 74170127. The next prime is 74170171. The reversal of 74170161 is 16107147.

It is not a de Polignac number, because 74170161 - 2⁹ = 74169649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (74170111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 167206 + ... + 167648.

It is an arithmetic number, because the mean of its divisors is an integer number (2545452).

Almost surely, 2^74170161 is an apocalyptic number.

It is an amenable number.

74170161 is a deficient number, since it is larger than the sum of its proper divisors (48011535).

74170161 is a wasteful number, since it uses less digits than its factorization.

74170161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 74170161 is about 8612.2099951174. The cubic root of 74170161 is about 420.1551977465.

The spelling of 74170161 in words is "seventy-four million, one hundred seventy thousand, one hundred sixty-one".