90495145 has 8 divisors (see below), whose sum is σ = 116947656. Its totient is φ = 66827136.

The previous prime is 90495127. The next prime is 90495161. The reversal of 90495145 is 54159409.

It can be written as a sum of positive squares in 4 ways, for example, as 700569 + 89794576 = 837^2 + 9476^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90495145 - 2¹⁹ = 89970857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696052 + ... + 696181.

It is an arithmetic number, because the mean of its divisors is an integer number (14618457).

Almost surely, 2^90495145 is an apocalyptic number.

It is an amenable number.

90495145 is a deficient number, since it is larger than the sum of its proper divisors (26452511).

90495145 is a wasteful number, since it uses less digits than its factorization.

90495145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392251.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 90495145 is about 9512.8936186630. The cubic root of 90495145 is about 448.9608036511.

The spelling of 90495145 in words is "ninety million, four hundred ninety-five thousand, one hundred forty-five".