31142002 has 16 divisors (see below), whose sum is σ = 47638080. Its totient is φ = 15265008.

The previous prime is 31141997. The next prime is 31142003. The reversal of 31142002 is 20024113.

It is not an unprimeable number, because it can be changed into a prime (31142003) 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, 36699 + ... + 37537.

It is an arithmetic number, because the mean of its divisors is an integer number (2977380).

Almost surely, 2^31142002 is an apocalyptic number.

31142002 is a deficient number, since it is larger than the sum of its proper divisors (16496078).

31142002 is a wasteful number, since it uses less digits than its factorization.

31142002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185.

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

The square root of 31142002 is about 5580.5019487498. The cubic root of 31142002 is about 314.6169931305.

Adding to 31142002 its reverse (20024113), we get a palindrome (51166115).

The spelling of 31142002 in words is "thirty-one million, one hundred forty-two thousand, two".