15013315442 has 4 divisors (see below), whose sum is σ = 22519973166. Its totient is φ = 7506657720.

The previous prime is 15013315439. The next prime is 15013315463. The reversal of 15013315442 is 24451331051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12825789001 + 2187526441 = 113251^2 + 46771^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3753328859 + ... + 3753328862.

Almost surely, 2^15013315442 is an apocalyptic number.

15013315442 is a deficient number, since it is larger than the sum of its proper divisors (7506657724).

15013315442 is an equidigital number, since it uses as much as digits as its factorization.

15013315442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7506657723.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 15013315442 its reverse (24451331051), we get a palindrome (39464646493).

The spelling of 15013315442 in words is "fifteen billion, thirteen million, three hundred fifteen thousand, four hundred forty-two".