1992137131 has 2 divisors, whose sum is σ = 1992137132. Its totient is φ = 1992137130.

The previous prime is 1992137117. The next prime is 1992137167. The reversal of 1992137131 is 1317312991.

It is a weak prime.

It is an emirp because it is prime and its reverse (1317312991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1992137131 - 2²¹ = 1990039979 is a prime.

It is a super-2 number, since 2×1992137131² = 7937220697417822322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1992137101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996068565 + 996068566.

It is an arithmetic number, because the mean of its divisors is an integer number (996068566).

Almost surely, 2^1992137131 is an apocalyptic number.

1992137131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1992137131 is an equidigital number, since it uses as much as digits as its factorization.

1992137131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 37.

The square root of 1992137131 is about 44633.3634291659. The cubic root of 1992137131 is about 1258.2677823997.

The spelling of 1992137131 in words is "one billion, nine hundred ninety-two million, one hundred thirty-seven thousand, one hundred thirty-one".