3145999956 has 48 divisors (see below), whose sum is σ = 8011895808. Its totient is φ = 952869600.

The previous prime is 3145999867. The next prime is 3145999979. The reversal of 3145999956 is 6599995413.

It is a self number, because there is not a number n which added to its sum of digits gives 3145999956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348111 + ... + 357033.

It is an arithmetic number, because the mean of its divisors is an integer number (166914496).

Almost surely, 2^3145999956 is an apocalyptic number.

It is an amenable number.

3145999956 is an abundant number, since it is smaller than the sum of its proper divisors (4865895852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3145999956 is a wasteful number, since it uses less digits than its factorization.

3145999956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11612 (or 11610 counting only the distinct ones).

The product of its digits is 11809800, while the sum is 60.

The square root of 3145999956 is about 56089.2142572884. The cubic root of 3145999956 is about 1465.2764536312.

The spelling of 3145999956 in words is "three billion, one hundred forty-five million, nine hundred ninety-nine thousand, nine hundred fifty-six".