93136457 has 2 divisors, whose sum is σ = 93136458. Its totient is φ = 93136456.

The previous prime is 93136427. The next prime is 93136471. The reversal of 93136457 is 75463139.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89661961 + 3474496 = 9469^2 + 1864^2 .

It is an emirp because it is prime and its reverse (75463139) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93136457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 93136457.

It is not a weakly prime, because it can be changed into another prime (93136427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46568228 + 46568229.

It is an arithmetic number, because the mean of its divisors is an integer number (46568229).

Almost surely, 2^93136457 is an apocalyptic number.

It is an amenable number.

93136457 is a deficient number, since it is larger than the sum of its proper divisors (1).

93136457 is an equidigital number, since it uses as much as digits as its factorization.

93136457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 93136457 is about 9650.7231335274. The cubic root of 93136457 is about 453.2869725634.

The spelling of 93136457 in words is "ninety-three million, one hundred thirty-six thousand, four hundred fifty-seven".