31431196 has 6 divisors (see below), whose sum is σ = 55004600. Its totient is φ = 15715596.

The previous prime is 31431163. The next prime is 31431199. The reversal of 31431196 is 69113413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3928896 + ... + 3928903.

Almost surely, 2^31431196 is an apocalyptic number.

It is an amenable number.

31431196 is a deficient number, since it is larger than the sum of its proper divisors (23573404).

31431196 is a wasteful number, since it uses less digits than its factorization.

31431196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7857803 (or 7857801 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 31431196 is about 5606.3531818821. The cubic root of 31431196 is about 315.5878700367.

The spelling of 31431196 in words is "thirty-one million, four hundred thirty-one thousand, one hundred ninety-six".