15245238147 has 4 divisors (see below), whose sum is σ = 20326984200. Its totient is φ = 10163492096.

The previous prime is 15245238137. The next prime is 15245238199. The reversal of 15245238147 is 74183254251.

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

It is a cyclic number.

It is not a de Polignac number, because 15245238147 - 2⁶ = 15245238083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15245238099 and 15245238108.

It is not an unprimeable number, because it can be changed into a prime (15245238137) 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, 2540873022 + ... + 2540873027.

It is an arithmetic number, because the mean of its divisors is an integer number (5081746050).

Almost surely, 2^15245238147 is an apocalyptic number.

15245238147 is a deficient number, since it is larger than the sum of its proper divisors (5081746053).

15245238147 is an equidigital number, since it uses as much as digits as its factorization.

15245238147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5081746052.

The product of its digits is 268800, while the sum is 42.

The spelling of 15245238147 in words is "fifteen billion, two hundred forty-five million, two hundred thirty-eight thousand, one hundred forty-seven".