90149753 has 2 divisors, whose sum is σ = 90149754. Its totient is φ = 90149752.

The previous prime is 90149749. The next prime is 90149809. The reversal of 90149753 is 35794109.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88868329 + 1281424 = 9427^2 + 1132^2 .

It is a cyclic number.

It is not a de Polignac number, because 90149753 - 2² = 90149749 is a prime.

It is a super-2 number, since 2×90149753² = 16253955931922018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (90149153) 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, 45074876 + 45074877.

It is an arithmetic number, because the mean of its divisors is an integer number (45074877).

Almost surely, 2^90149753 is an apocalyptic number.

It is an amenable number.

90149753 is a deficient number, since it is larger than the sum of its proper divisors (1).

90149753 is an equidigital number, since it uses as much as digits as its factorization.

90149753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 90149753 is about 9494.7223761414. The cubic root of 90149753 is about 448.3888938880.

The spelling of 90149753 in words is "ninety million, one hundred forty-nine thousand, seven hundred fifty-three".