90905351 has 2 divisors, whose sum is σ = 90905352. Its totient is φ = 90905350.

The previous prime is 90905333. The next prime is 90905357. The reversal of 90905351 is 15350909.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90905351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90905357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45452675 + 45452676.

It is an arithmetic number, because the mean of its divisors is an integer number (45452676).

Almost surely, 2^90905351 is an apocalyptic number.

90905351 is a deficient number, since it is larger than the sum of its proper divisors (1).

90905351 is an equidigital number, since it uses as much as digits as its factorization.

90905351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6075, while the sum is 32.

The square root of 90905351 is about 9534.4297679515. The cubic root of 90905351 is about 449.6381469656.

It can be divided in two parts, 9090 and 5351, that added together give a palindrome (14441).

The spelling of 90905351 in words is "ninety million, nine hundred five thousand, three hundred fifty-one".