90544045 has 8 divisors (see below), whose sum is σ = 108825696. Its totient is φ = 72320016.

The previous prime is 90544037. The next prime is 90544079. The reversal of 90544045 is 54044509.

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 90544045 - 2³ = 90544037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90543998 and 90544016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10867 + ... + 17296.

It is an arithmetic number, because the mean of its divisors is an integer number (13603212).

Almost surely, 2^90544045 is an apocalyptic number.

It is an amenable number.

90544045 is a deficient number, since it is larger than the sum of its proper divisors (18281651).

90544045 is a wasteful number, since it uses less digits than its factorization.

90544045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28811.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 90544045 is about 9515.4634674303. The cubic root of 90544045 is about 449.0416559815.

The spelling of 90544045 in words is "ninety million, five hundred forty-four thousand, forty-five".