15312045 has 16 divisors (see below), whose sum is σ = 27999360. Its totient is φ = 6999744.

The previous prime is 15312007. The next prime is 15312049. The reversal of 15312045 is 54021351.

It is not a de Polignac number, because 15312045 - 2⁶ = 15311981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15312049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72810 + ... + 73019.

It is an arithmetic number, because the mean of its divisors is an integer number (1749960).

Almost surely, 2^15312045 is an apocalyptic number.

15312045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15312045 is a deficient number, since it is larger than the sum of its proper divisors (12687315).

15312045 is a wasteful number, since it uses less digits than its factorization.

15312045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145844.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 15312045 is about 3913.0608224253. The cubic root of 15312045 is about 248.3196374992.

Adding to 15312045 its reverse (54021351), we get a palindrome (69333396).

The spelling of 15312045 in words is "fifteen million, three hundred twelve thousand, forty-five".