31374009 has 12 divisors (see below), whose sum is σ = 45400576. Its totient is φ = 20877912.

The previous prime is 31373989. The next prime is 31374011. The reversal of 31374009 is 90047313.

It is not a de Polignac number, because 31374009 - 2⁹ = 31373497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31374019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2592 + ... + 8334.

Almost surely, 2^31374009 is an apocalyptic number.

It is an amenable number.

31374009 is a deficient number, since it is larger than the sum of its proper divisors (14026567).

31374009 is a wasteful number, since it uses less digits than its factorization.

31374009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356 (or 6353 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 31374009 is about 5601.2506639143. The cubic root of 31374009 is about 315.3963566962.

The spelling of 31374009 in words is "thirty-one million, three hundred seventy-four thousand, nine".