31314004 has 6 divisors (see below), whose sum is σ = 54799514. Its totient is φ = 15657000.

The previous prime is 31313993. The next prime is 31314013. The reversal of 31314004 is 40041313.

It can be written as a sum of positive squares in only one way, i.e., 19342404 + 11971600 = 4398^2 + 3460^2 .

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 as a sum of consecutive naturals, namely, 3914247 + ... + 3914254.

Almost surely, 2^31314004 is an apocalyptic number.

It is an amenable number.

31314004 is a deficient number, since it is larger than the sum of its proper divisors (23485510).

31314004 is a wasteful number, since it uses less digits than its factorization.

31314004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7828505 (or 7828503 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 31314004 is about 5595.8917073153. The cubic root of 31314004 is about 315.1951557958.

Adding to 31314004 its reverse (40041313), we get a palindrome (71355317).

The spelling of 31314004 in words is "thirty-one million, three hundred fourteen thousand, four".