45015389 has 4 divisors (see below), whose sum is σ = 47384640. Its totient is φ = 42646140.

The previous prime is 45015359. The next prime is 45015403. The reversal of 45015389 is 98351054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98351054 = 2 ⋅49175527.

It is a cyclic number.

It is not a de Polignac number, because 45015389 - 2¹² = 45011293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45015319) 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, 1184597 + ... + 1184634.

It is an arithmetic number, because the mean of its divisors is an integer number (11846160).

Almost surely, 2^45015389 is an apocalyptic number.

It is an amenable number.

45015389 is a deficient number, since it is larger than the sum of its proper divisors (2369251).

45015389 is a wasteful number, since it uses less digits than its factorization.

45015389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369250.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 45015389 is about 6709.3508627884. The cubic root of 45015389 is about 355.7298717769.

The spelling of 45015389 in words is "forty-five million, fifteen thousand, three hundred eighty-nine".