45023015 has 4 divisors (see below), whose sum is σ = 54027624. Its totient is φ = 36018408.

The previous prime is 45023009. The next prime is 45023057. The reversal of 45023015 is 51032054.

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 45023015 - 2¹⁴ = 45006631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4502297 + ... + 4502306.

It is an arithmetic number, because the mean of its divisors is an integer number (13506906).

Almost surely, 2^45023015 is an apocalyptic number.

45023015 is a deficient number, since it is larger than the sum of its proper divisors (9004609).

45023015 is an equidigital number, since it uses as much as digits as its factorization.

45023015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9004608.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 45023015 is about 6709.9191500345. The cubic root of 45023015 is about 355.7499585582.

Adding to 45023015 its reverse (51032054), we get a palindrome (96055069).

The spelling of 45023015 in words is "forty-five million, twenty-three thousand, fifteen".