31514942 has 4 divisors (see below), whose sum is σ = 47272416. Its totient is φ = 15757470.

The previous prime is 31514933. The next prime is 31514947. The reversal of 31514942 is 24941513.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31514947) 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 as a sum of consecutive naturals, namely, 7878734 + ... + 7878737.

It is an arithmetic number, because the mean of its divisors is an integer number (11818104).

Almost surely, 2^31514942 is an apocalyptic number.

31514942 is a deficient number, since it is larger than the sum of its proper divisors (15757474).

31514942 is a wasteful number, since it uses less digits than its factorization.

31514942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15757473.

The product of its digits is 4320, while the sum is 29.

The square root of 31514942 is about 5613.8170615010. The cubic root of 31514942 is about 315.8679079919.

The spelling of 31514942 in words is "thirty-one million, five hundred fourteen thousand, nine hundred forty-two".