31361364 has 24 divisors (see below), whose sum is σ = 81307520. Its totient is φ = 10453752.

The previous prime is 31361347. The next prime is 31361377. The reversal of 31361364 is 46316313.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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, 145084 + ... + 145299.

Almost surely, 2^31361364 is an apocalyptic number.

It is an amenable number.

31361364 is an abundant number, since it is smaller than the sum of its proper divisors (49946156).

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

31361364 is a wasteful number, since it uses less digits than its factorization.

31361364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290396 (or 290388 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 31361364 is about 5600.1217843901. The cubic root of 31361364 is about 315.3539784880.

Adding to 31361364 its reverse (46316313), we get a palindrome (77677677).

The spelling of 31361364 in words is "thirty-one million, three hundred sixty-one thousand, three hundred sixty-four".