31149394 has 8 divisors (see below), whose sum is σ = 46930608. Its totient is φ = 15505860.

The previous prime is 31149373. The next prime is 31149397. The reversal of 31149394 is 49394113.

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

It is not an unprimeable number, because it can be changed into a prime (31149397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33852 + ... + 34759.

It is an arithmetic number, because the mean of its divisors is an integer number (5866326).

Almost surely, 2^31149394 is an apocalyptic number.

31149394 is a deficient number, since it is larger than the sum of its proper divisors (15781214).

31149394 is a wasteful number, since it uses less digits than its factorization.

31149394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68840.

The product of its digits is 11664, while the sum is 34.

The square root of 31149394 is about 5581.1642154662. The cubic root of 31149394 is about 314.6418841103.

The spelling of 31149394 in words is "thirty-one million, one hundred forty-nine thousand, three hundred ninety-four".