90931301 has 2 divisors, whose sum is σ = 90931302. Its totient is φ = 90931300.

The previous prime is 90931289. The next prime is 90931307. The reversal of 90931301 is 10313909.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77616100 + 13315201 = 8810^2 + 3649^2 .

It is an emirp because it is prime and its reverse (10313909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90931301 - 2²⁶ = 23822437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90931307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45465650 + 45465651.

It is an arithmetic number, because the mean of its divisors is an integer number (45465651).

Almost surely, 2^90931301 is an apocalyptic number.

It is an amenable number.

90931301 is a deficient number, since it is larger than the sum of its proper divisors (1).

90931301 is an equidigital number, since it uses as much as digits as its factorization.

90931301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 90931301 is about 9535.7905283201. The cubic root of 90931301 is about 449.6809277249.

The spelling of 90931301 in words is "ninety million, nine hundred thirty-one thousand, three hundred one".