31125002 has 16 divisors (see below), whose sum is σ = 49378560. Its totient is φ = 14673312.

The previous prime is 31125001. The next prime is 31125007. The reversal of 31125002 is 20052113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31125001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6638 + ... + 10310.

It is an arithmetic number, because the mean of its divisors is an integer number (3086160).

Almost surely, 2^31125002 is an apocalyptic number.

31125002 is a deficient number, since it is larger than the sum of its proper divisors (18253558).

31125002 is a wasteful number, since it uses less digits than its factorization.

31125002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 31125002 is about 5578.9785803496. The cubic root of 31125002 is about 314.5597343154.

Adding to 31125002 its reverse (20052113), we get a palindrome (51177115).

The spelling of 31125002 in words is "thirty-one million, one hundred twenty-five thousand, two".