31141400 has 24 divisors (see below), whose sum is σ = 72404220. Its totient is φ = 12456480.

The previous prime is 31141373. The next prime is 31141403. The reversal of 31141400 is 414113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31141403) 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 5 ways as a sum of consecutive naturals, for example, 77654 + ... + 78053.

Almost surely, 2^31141400 is an apocalyptic number.

It is an amenable number.

31141400 is an abundant number, since it is smaller than the sum of its proper divisors (41262820).

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

31141400 is a wasteful number, since it uses less digits than its factorization.

31141400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155723 (or 155714 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 31141400 is about 5580.4480106887. The cubic root of 31141400 is about 314.6149658507.

Adding to 31141400 its reverse (414113), we get a palindrome (31555513).

The spelling of 31141400 in words is "thirty-one million, one hundred forty-one thousand, four hundred".