31069994 has 8 divisors (see below), whose sum is σ = 47688960. Its totient is φ = 15173676.

The previous prime is 31069993. The next prime is 31070003. The reversal of 31069994 is 49996013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31069993) 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 3 ways as a sum of consecutive naturals, for example, 180554 + ... + 180725.

It is an arithmetic number, because the mean of its divisors is an integer number (5961120).

Almost surely, 2^31069994 is an apocalyptic number.

31069994 is a deficient number, since it is larger than the sum of its proper divisors (16618966).

31069994 is a wasteful number, since it uses less digits than its factorization.

31069994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361324.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 31069994 is about 5574.0464655401. The cubic root of 31069994 is about 314.3743152600.

The spelling of 31069994 in words is "thirty-one million, sixty-nine thousand, nine hundred ninety-four".