501132979 has 2 divisors, whose sum is σ = 501132980. Its totient is φ = 501132978.

The previous prime is 501132977. The next prime is 501133019. The reversal of 501132979 is 979231105.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 501132979 - 2¹ = 501132977 is a prime.

It is a super-2 number, since 2×501132979² = 502268525282828882, which contains 22 as substring.

Together with 501132977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (501132977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250566489 + 250566490.

It is an arithmetic number, because the mean of its divisors is an integer number (250566490).

Almost surely, 2^501132979 is an apocalyptic number.

501132979 is a deficient number, since it is larger than the sum of its proper divisors (1).

501132979 is an equidigital number, since it uses as much as digits as its factorization.

501132979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 501132979 is about 22385.9996202984. Note that the first 3 decimals coincide. The cubic root of 501132979 is about 794.2995710935.

The spelling of 501132979 in words is "five hundred one million, one hundred thirty-two thousand, nine hundred seventy-nine".