90113951 has 2 divisors, whose sum is σ = 90113952. Its totient is φ = 90113950.

The previous prime is 90113909. The next prime is 90113963. The reversal of 90113951 is 15931109.

It is a strong prime.

It is an emirp because it is prime and its reverse (15931109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90113951 - 2⁶ = 90113887 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 (90113971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45056975 + 45056976.

It is an arithmetic number, because the mean of its divisors is an integer number (45056976).

Almost surely, 2^90113951 is an apocalyptic number.

90113951 is a deficient number, since it is larger than the sum of its proper divisors (1).

90113951 is an equidigital number, since it uses as much as digits as its factorization.

90113951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215, while the sum is 29.

The square root of 90113951 is about 9492.8368257334. The cubic root of 90113951 is about 448.3295284276.

The spelling of 90113951 in words is "ninety million, one hundred thirteen thousand, nine hundred fifty-one".