83150591 has 2 divisors, whose sum is σ = 83150592. Its totient is φ = 83150590.

The previous prime is 83150563. The next prime is 83150603. The reversal of 83150591 is 19505138.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83150591 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_4842527 and since 83150591 and 4842527 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83150521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41575295 + 41575296.

It is an arithmetic number, because the mean of its divisors is an integer number (41575296).

Almost surely, 2^83150591 is an apocalyptic number.

83150591 is a deficient number, since it is larger than the sum of its proper divisors (1).

83150591 is an equidigital number, since it uses as much as digits as its factorization.

83150591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 83150591 is about 9118.6945885911. The cubic root of 83150591 is about 436.4707184344.

The spelling of 83150591 in words is "eighty-three million, one hundred fifty thousand, five hundred ninety-one".