58131691 has 2 divisors, whose sum is σ = 58131692. Its totient is φ = 58131690.

The previous prime is 58131637. The next prime is 58131737. The reversal of 58131691 is 19613185.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58131691 is a prime.

It is not a weakly prime, because it can be changed into another prime (58131611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29065845 + 29065846.

It is an arithmetic number, because the mean of its divisors is an integer number (29065846).

Almost surely, 2^58131691 is an apocalyptic number.

58131691 is a deficient number, since it is larger than the sum of its proper divisors (1).

58131691 is an equidigital number, since it uses as much as digits as its factorization.

58131691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 34.

The square root of 58131691 is about 7624.4141414275. The cubic root of 58131691 is about 387.3804079091.

The spelling of 58131691 in words is "fifty-eight million, one hundred thirty-one thousand, six hundred ninety-one".