15155045247 has 4 divisors (see below), whose sum is σ = 20206727000. Its totient is φ = 10103363496.

The previous prime is 15155045219. The next prime is 15155045263. The reversal of 15155045247 is 74254055151.

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

It is not a de Polignac number, because 15155045247 - 2⁸ = 15155044991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15155045287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525840872 + ... + 2525840877.

It is an arithmetic number, because the mean of its divisors is an integer number (5051681750).

Almost surely, 2^15155045247 is an apocalyptic number.

15155045247 is a deficient number, since it is larger than the sum of its proper divisors (5051681753).

15155045247 is an equidigital number, since it uses as much as digits as its factorization.

15155045247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051681752.

The product of its (nonzero) digits is 140000, while the sum is 39.

The spelling of 15155045247 in words is "fifteen billion, one hundred fifty-five million, forty-five thousand, two hundred forty-seven".