31004099 has 16 divisors (see below), whose sum is σ = 36372672. Its totient is φ = 25878528.

The previous prime is 31004093. The next prime is 31004101. The reversal of 31004099 is 99040013.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31004099 - 2¹² = 31000003 is a prime.

It is a super-2 number, since 2×31004099² = 1922508309603602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31004093) 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 15 ways as a sum of consecutive naturals, for example, 71387 + ... + 71819.

It is an arithmetic number, because the mean of its divisors is an integer number (2273292).

Almost surely, 2^31004099 is an apocalyptic number.

31004099 is a deficient number, since it is larger than the sum of its proper divisors (5368573).

31004099 is a wasteful number, since it uses less digits than its factorization.

31004099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 31004099 is about 5568.1324517292. The cubic root of 31004099 is about 314.1519103486.

The spelling of 31004099 in words is "thirty-one million, four thousand, ninety-nine".