31414136 has 48 divisors (see below), whose sum is σ = 66426360. Its totient is φ = 13844160.

The previous prime is 31414133. The next prime is 31414153. The reversal of 31414136 is 63141413.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31414133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54731 + ... + 55301.

Almost surely, 2^31414136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31414136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33213180).

31414136 is an abundant number, since it is smaller than the sum of its proper divisors (35012224).

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

31414136 is a wasteful number, since it uses less digits than its factorization.

31414136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 609 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 31414136 is about 5604.8314872082. The cubic root of 31414136 is about 315.5307621935.

Adding to 31414136 its reverse (63141413), we get a palindrome (94555549).

The spelling of 31414136 in words is "thirty-one million, four hundred fourteen thousand, one hundred thirty-six".