45089509 has 8 divisors (see below), whose sum is σ = 45568512. Its totient is φ = 44613360.

The previous prime is 45089507. The next prime is 45089543. The reversal of 45089509 is 90598054.

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 45089509 - 2¹ = 45089507 is a prime.

It is a super-2 number, since 2×45089509² = 4066127643722162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45089503) 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, 45004 + ... + 45994.

It is an arithmetic number, because the mean of its divisors is an integer number (5696064).

Almost surely, 2^45089509 is an apocalyptic number.

It is an amenable number.

45089509 is a deficient number, since it is larger than the sum of its proper divisors (479003).

45089509 is a wasteful number, since it uses less digits than its factorization.

45089509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 45089509 is about 6714.8722251432. The cubic root of 45089509 is about 355.9250068226.

The spelling of 45089509 in words is "forty-five million, eighty-nine thousand, five hundred nine".