15130445 has 24 divisors (see below), whose sum is σ = 20253240. Its totient is φ = 10841600.

The previous prime is 15130439. The next prime is 15130457. The reversal of 15130445 is 54403151.

It can be written as a sum of positive squares in 4 ways, for example, as 894916 + 14235529 = 946^2 + 3773^2 .

It is not a de Polignac number, because 15130445 - 2⁴ = 15130429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15130445.

It is a congruent number.

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, 53705 + ... + 53985.

It is an arithmetic number, because the mean of its divisors is an integer number (843885).

Almost surely, 2^15130445 is an apocalyptic number.

It is an amenable number.

15130445 is a deficient number, since it is larger than the sum of its proper divisors (5122795).

15130445 is a wasteful number, since it uses less digits than its factorization.

15130445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 15130445 is about 3889.7872692475. The cubic root of 15130445 is about 247.3340451266.

Adding to 15130445 its reverse (54403151), we get a palindrome (69533596).

The spelling of 15130445 in words is "fifteen million, one hundred thirty thousand, four hundred forty-five".