90158753 has 2 divisors, whose sum is σ = 90158754. Its totient is φ = 90158752.

The previous prime is 90158749. The next prime is 90158759. The reversal of 90158753 is 35785109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77141089 + 13017664 = 8783^2 + 3608^2 .

It is a cyclic number.

It is not a de Polignac number, because 90158753 - 2² = 90158749 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (90158759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45079376 + 45079377.

It is an arithmetic number, because the mean of its divisors is an integer number (45079377).

Almost surely, 2^90158753 is an apocalyptic number.

It is an amenable number.

90158753 is a deficient number, since it is larger than the sum of its proper divisors (1).

90158753 is an equidigital number, since it uses as much as digits as its factorization.

90158753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 90158753 is about 9495.1963118200. The cubic root of 90158753 is about 448.4038148598.

The spelling of 90158753 in words is "ninety million, one hundred fifty-eight thousand, seven hundred fifty-three".