76130731 has 2 divisors, whose sum is σ = 76130732. Its totient is φ = 76130730.

The previous prime is 76130711. The next prime is 76130749. The reversal of 76130731 is 13703167.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76130731 - 2⁷ = 76130603 is a prime.

It is a super-4 number, since 4×76130731⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 76130731.

It is not a weakly prime, because it can be changed into another prime (76130711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38065365 + 38065366.

It is an arithmetic number, because the mean of its divisors is an integer number (38065366).

Almost surely, 2^76130731 is an apocalyptic number.

76130731 is a deficient number, since it is larger than the sum of its proper divisors (1).

76130731 is an equidigital number, since it uses as much as digits as its factorization.

76130731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 76130731 is about 8725.2926025435. The cubic root of 76130731 is about 423.8250936202.

Adding to 76130731 its reverse (13703167), we get a palindrome (89833898).

The spelling of 76130731 in words is "seventy-six million, one hundred thirty thousand, seven hundred thirty-one".