15213045 has 16 divisors (see below), whose sum is σ = 25773120. Its totient is φ = 7636224.

The previous prime is 15213043. The next prime is 15213061. The reversal of 15213045 is 54031251.

15213045 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15213045 - 2¹ = 15213043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15213041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29575 + ... + 30084.

It is an arithmetic number, because the mean of its divisors is an integer number (1610820).

Almost surely, 2^15213045 is an apocalyptic number.

15213045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15213045 is a deficient number, since it is larger than the sum of its proper divisors (10560075).

15213045 is a wasteful number, since it uses less digits than its factorization.

15213045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59684.

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

The square root of 15213045 is about 3900.3903650789. The cubic root of 15213045 is about 247.7833098983.

Adding to 15213045 its reverse (54031251), we get a palindrome (69244296).

The spelling of 15213045 in words is "fifteen million, two hundred thirteen thousand, forty-five".