31042196 has 12 divisors (see below), whose sum is σ = 54363540. Its totient is φ = 15509760.

The previous prime is 31042177. The next prime is 31042199. The reversal of 31042196 is 69124013.

It can be written as a sum of positive squares in 2 ways, for example, as 24641296 + 6400900 = 4964^2 + 2530^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31042199) 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, 7556 + ... + 10916.

It is an arithmetic number, because the mean of its divisors is an integer number (4530295).

Almost surely, 2^31042196 is an apocalyptic number.

It is an amenable number.

31042196 is a deficient number, since it is larger than the sum of its proper divisors (23321344).

31042196 is a wasteful number, since it uses less digits than its factorization.

31042196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5674 (or 5672 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 31042196 is about 5571.5523869026. The cubic root of 31042196 is about 314.2805314769.

The spelling of 31042196 in words is "thirty-one million, forty-two thousand, one hundred ninety-six".