31362136 has 32 divisors (see below), whose sum is σ = 64809360. Its totient is φ = 14136192.

The previous prime is 31362119. The next prime is 31362139. The reversal of 31362136 is 63126313.

It is a self number, because there is not a number n which added to its sum of digits gives 31362136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31362139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966 + ... + 7978.

Almost surely, 2^31362136 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 31362136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32404680).

31362136 is an abundant number, since it is smaller than the sum of its proper divisors (33447224).

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

31362136 is a wasteful number, since it uses less digits than its factorization.

31362136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7075 (or 7071 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

The square root of 31362136 is about 5600.1907110383. The cubic root of 31362136 is about 315.3565660803.

Adding to 31362136 its reverse (63126313), we get a palindrome (94488449).

The spelling of 31362136 in words is "thirty-one million, three hundred sixty-two thousand, one hundred thirty-six".