15113745 has 24 divisors (see below), whose sum is σ = 26695656. Its totient is φ = 7907328.

The previous prime is 15113729. The next prime is 15113773. The reversal of 15113745 is 54731151.

15113745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1871424 + 13242321 = 1368^2 + 3639^2 .

It is not a de Polignac number, because 15113745 - 2⁴ = 15113729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 784 + ... + 5553.

It is an arithmetic number, because the mean of its divisors is an integer number (1112319).

Almost surely, 2^15113745 is an apocalyptic number.

15113745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15113745 is a deficient number, since it is larger than the sum of its proper divisors (11581911).

15113745 is a wasteful number, since it uses less digits than its factorization.

15113745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401 (or 6398 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 15113745 is about 3887.6400296324. The cubic root of 15113745 is about 247.2430145558.

Adding to 15113745 its reverse (54731151), we get a palindrome (69844896).

The spelling of 15113745 in words is "fifteen million, one hundred thirteen thousand, seven hundred forty-five".