1976131137 has 16 divisors (see below), whose sum is σ = 2731308480. Its totient is φ = 1269374400.

The previous prime is 1976131133. The next prime is 1976131139. The reversal of 1976131137 is 7311316791.

It is not a de Polignac number, because 1976131137 - 2² = 1976131133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1976131095 and 1976131104.

It is not an unprimeable number, because it can be changed into a prime (1976131133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19587 + ... + 65847.

It is an arithmetic number, because the mean of its divisors is an integer number (170706780).

Almost surely, 2^1976131137 is an apocalyptic number.

It is an amenable number.

1976131137 is a deficient number, since it is larger than the sum of its proper divisors (755177343).

1976131137 is a wasteful number, since it uses less digits than its factorization.

1976131137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46784.

The product of its digits is 23814, while the sum is 39.

The square root of 1976131137 is about 44453.6965504557. The cubic root of 1976131137 is about 1254.8888304357. Note that the first 4 decimals are identical.

The spelling of 1976131137 in words is "one billion, nine hundred seventy-six million, one hundred thirty-one thousand, one hundred thirty-seven".