31382134 has 32 divisors (see below), whose sum is σ = 55157760. Its totient is φ = 13114752.

The previous prime is 31382123. The next prime is 31382171. The reversal of 31382134 is 43128313.

It is a junction number, because it is equal to n+sod(n) for n = 31382099 and 31382108.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 131187 + ... + 131425.

It is an arithmetic number, because the mean of its divisors is an integer number (1723680).

Almost surely, 2^31382134 is an apocalyptic number.

31382134 is a deficient number, since it is larger than the sum of its proper divisors (23775626).

31382134 is a wasteful number, since it uses less digits than its factorization.

31382134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444.

The product of its digits is 1728, while the sum is 25.

The square root of 31382134 is about 5601.9759014119. The cubic root of 31382134 is about 315.4235806553.

The spelling of 31382134 in words is "thirty-one million, three hundred eighty-two thousand, one hundred thirty-four".