31214200 has 24 divisors (see below), whose sum is σ = 72573480. Its totient is φ = 12485600.

The previous prime is 31214189. The next prime is 31214201. The reversal of 31214200 is 241213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214201) 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, 77836 + ... + 78235.

It is an arithmetic number, because the mean of its divisors is an integer number (3023895).

Almost surely, 2^31214200 is an apocalyptic number.

It is an amenable number.

31214200 is an abundant number, since it is smaller than the sum of its proper divisors (41359280).

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

31214200 is a wasteful number, since it uses less digits than its factorization.

31214200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156087 (or 156078 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 31214200 is about 5586.9669768131. The cubic root of 31214200 is about 314.8599360505.

Adding to 31214200 its reverse (241213), we get a palindrome (31455413).

The spelling of 31214200 in words is "thirty-one million, two hundred fourteen thousand, two hundred".