1979136501 has 16 divisors (see below), whose sum is σ = 2789990400. Its totient is φ = 1244466288.

The previous prime is 1979136487. The next prime is 1979136527. The reversal of 1979136501 is 1056319791.

It is not a de Polignac number, because 1979136501 - 2⁹ = 1979135989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979136541) 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, 63541 + ... + 89418.

It is an arithmetic number, because the mean of its divisors is an integer number (174374400).

Almost surely, 2^1979136501 is an apocalyptic number.

It is an amenable number.

1979136501 is a deficient number, since it is larger than the sum of its proper divisors (810853899).

1979136501 is a wasteful number, since it uses less digits than its factorization.

1979136501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153208.

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 1979136501 is about 44487.4870160138. The cubic root of 1979136501 is about 1255.5246666867.

The spelling of 1979136501 in words is "one billion, nine hundred seventy-nine million, one hundred thirty-six thousand, five hundred one".