76231381 has 2 divisors, whose sum is σ = 76231382. Its totient is φ = 76231380.

The previous prime is 76231373. The next prime is 76231399. The reversal of 76231381 is 18313267.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71673156 + 4558225 = 8466^2 + 2135^2 .

It is a cyclic number.

It is not a de Polignac number, because 76231381 - 2³ = 76231373 is a prime.

It is a super-2 number, since 2×76231381² = 11622446898334322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76232381) 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, 38115690 + 38115691.

It is an arithmetic number, because the mean of its divisors is an integer number (38115691).

Almost surely, 2^76231381 is an apocalyptic number.

It is an amenable number.

76231381 is a deficient number, since it is larger than the sum of its proper divisors (1).

76231381 is an equidigital number, since it uses as much as digits as its factorization.

76231381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 76231381 is about 8731.0584123576. The cubic root of 76231381 is about 424.0117865627.

The spelling of 76231381 in words is "seventy-six million, two hundred thirty-one thousand, three hundred eighty-one".