45045679 has 4 divisors (see below), whose sum is σ = 51480784. Its totient is φ = 38610576.

The previous prime is 45045617. The next prime is 45045683. The reversal of 45045679 is 97654054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45045679 - 2¹⁹ = 44521391 is a prime.

It is a super-2 number, since 2×45045679² = 4058226393142082, 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 (45045479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3217542 + ... + 3217555.

It is an arithmetic number, because the mean of its divisors is an integer number (12870196).

Almost surely, 2^45045679 is an apocalyptic number.

45045679 is a deficient number, since it is larger than the sum of its proper divisors (6435105).

45045679 is an equidigital number, since it uses as much as digits as its factorization.

45045679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6435104.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 45045679 is about 6711.6077805545. The cubic root of 45045679 is about 355.8096418450.

The spelling of 45045679 in words is "forty-five million, forty-five thousand, six hundred seventy-nine".