31454164 has 24 divisors (see below), whose sum is σ = 63060480. Its totient is φ = 13447776.

The previous prime is 31454161. The next prime is 31454191. The reversal of 31454164 is 46145413.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31454161) 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, 13149 + ... + 15355.

It is an arithmetic number, because the mean of its divisors is an integer number (2627520).

Almost surely, 2^31454164 is an apocalyptic number.

It is an amenable number.

31454164 is an abundant number, since it is smaller than the sum of its proper divisors (31606316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31454164 is a wasteful number, since it uses less digits than its factorization.

31454164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727 (or 2725 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 31454164 is about 5608.4011982026. The cubic root of 31454164 is about 315.6647221059.

Adding to 31454164 its reverse (46145413), we get a palindrome (77599577).

The spelling of 31454164 in words is "thirty-one million, four hundred fifty-four thousand, one hundred sixty-four".