76261531 has 2 divisors, whose sum is σ = 76261532. Its totient is φ = 76261530.

The previous prime is 76261501. The next prime is 76261543. The reversal of 76261531 is 13516267.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76261531 - 2⁹ = 76261019 is a prime.

It is a super-2 number, since 2×76261531² = 11631642220927922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 76261493 and 76261502.

It is not a weakly prime, because it can be changed into another prime (76261501) 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, 38130765 + 38130766.

It is an arithmetic number, because the mean of its divisors is an integer number (38130766).

Almost surely, 2^76261531 is an apocalyptic number.

76261531 is a deficient number, since it is larger than the sum of its proper divisors (1).

76261531 is an equidigital number, since it uses as much as digits as its factorization.

76261531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 76261531 is about 8732.7848364654. The cubic root of 76261531 is about 424.0676789882.

Adding to 76261531 its reverse (13516267), we get a palindrome (89777798).

The spelling of 76261531 in words is "seventy-six million, two hundred sixty-one thousand, five hundred thirty-one".