45712161 has 16 divisors (see below), whose sum is σ = 73878720. Its totient is φ = 27704160.

The previous prime is 45712127. The next prime is 45712169. The reversal of 45712161 is 16121754.

It is a happy number.

It is not a de Polignac number, because 45712161 - 2⁶ = 45712097 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 (45712169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76660 + ... + 77253.

It is an arithmetic number, because the mean of its divisors is an integer number (4617420).

Almost surely, 2^45712161 is an apocalyptic number.

It is an amenable number.

45712161 is a deficient number, since it is larger than the sum of its proper divisors (28166559).

45712161 is a wasteful number, since it uses less digits than its factorization.

45712161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153933 (or 153927 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 45712161 is about 6761.0769112620. The cubic root of 45712161 is about 357.5558743581. Note that the first 3 decimals are identical.

The spelling of 45712161 in words is "forty-five million, seven hundred twelve thousand, one hundred sixty-one".