15135254243 has 8 divisors (see below), whose sum is σ = 15186502608. Its totient is φ = 15084093024.

The previous prime is 15135254231. The next prime is 15135254261. The reversal of 15135254243 is 34245253151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15135254243 - 2²⁸ = 14866818787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15135254203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336005 + ... + 378377.

It is an arithmetic number, because the mean of its divisors is an integer number (1898312826).

Almost surely, 2^15135254243 is an apocalyptic number.

15135254243 is a deficient number, since it is larger than the sum of its proper divisors (51248365).

15135254243 is an equidigital number, since it uses as much as digits as its factorization.

15135254243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43573.

The product of its digits is 72000, while the sum is 35.

The spelling of 15135254243 in words is "fifteen billion, one hundred thirty-five million, two hundred fifty-four thousand, two hundred forty-three".