31004132 has 12 divisors (see below), whose sum is σ = 56128380. Its totient is φ = 14967456.

The previous prime is 31004119. The next prime is 31004147. The reversal of 31004132 is 23140013.

It can be written as a sum of positive squares in 2 ways, for example, as 13498276 + 17505856 = 3674^2 + 4184^2 .

It is a super-2 number, since 2×31004132² = 1922512402146848, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 133523 + ... + 133754.

It is an arithmetic number, because the mean of its divisors is an integer number (4677365).

Almost surely, 2^31004132 is an apocalyptic number.

It is an amenable number.

31004132 is a deficient number, since it is larger than the sum of its proper divisors (25124248).

31004132 is a wasteful number, since it uses less digits than its factorization.

31004132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267310 (or 267308 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 31004132 is about 5568.1354150200. The cubic root of 31004132 is about 314.1520218071.

Adding to 31004132 its reverse (23140013), we get a palindrome (54144145).

The spelling of 31004132 in words is "thirty-one million, four thousand, one hundred thirty-two".