45090619 has 8 divisors (see below), whose sum is σ = 52033280. Its totient is φ = 38273256.

The previous prime is 45090607. The next prime is 45090623. The reversal of 45090619 is 91609054.

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

It is not a de Polignac number, because 45090619 - 2⁷ = 45090491 is a prime.

It is a super-2 number, since 2×45090619² = 4066327843606322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45090659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30549 + ... + 31990.

It is an arithmetic number, because the mean of its divisors is an integer number (6504160).

Almost surely, 2^45090619 is an apocalyptic number.

45090619 is a deficient number, since it is larger than the sum of its proper divisors (6942661).

45090619 is a wasteful number, since it uses less digits than its factorization.

45090619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62649.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 45090619 is about 6714.9548769891. The cubic root of 45090619 is about 355.9279274837.

The spelling of 45090619 in words is "forty-five million, ninety thousand, six hundred nineteen".