31075964146 has 4 divisors (see below), whose sum is σ = 46613946222. Its totient is φ = 15537982072.

The previous prime is 31075964141. The next prime is 31075964149. The reversal of 31075964146 is 64146957013.

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

It can be written as a sum of positive squares in only one way, i.e., 30185240121 + 890724025 = 173739^2 + 29845^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31075964096 and 31075964105.

It is not an unprimeable number, because it can be changed into a prime (31075964141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7768991035 + ... + 7768991038.

Almost surely, 2^31075964146 is an apocalyptic number.

31075964146 is a deficient number, since it is larger than the sum of its proper divisors (15537982076).

31075964146 is a wasteful number, since it uses less digits than its factorization.

31075964146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15537982075.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 31075964146 in words is "thirty-one billion, seventy-five million, nine hundred sixty-four thousand, one hundred forty-six".