2131717958 has 32 divisors (see below), whose sum is σ = 3579033600. Its totient is φ = 946318464.

The previous prime is 2131717949. The next prime is 2131717969. The reversal of 2131717958 is 8597171312.

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, 147491 + ... + 161297.

It is an arithmetic number, because the mean of its divisors is an integer number (111844800).

Almost surely, 2^2131717958 is an apocalyptic number.

2131717958 is a deficient number, since it is larger than the sum of its proper divisors (1447315642).

2131717958 is a wasteful number, since it uses less digits than its factorization.

2131717958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14084.

The product of its digits is 105840, while the sum is 44.

The square root of 2131717958 is about 46170.5312726635. The cubic root of 2131717958 is about 1286.9941749834.

It can be divided in two parts, 213 and 1717958, that added together give a palindrome (1718171).

The spelling of 2131717958 in words is "two billion, one hundred thirty-one million, seven hundred seventeen thousand, nine hundred fifty-eight".