15240225131 has 4 divisors (see below), whose sum is σ = 15397340952. Its totient is φ = 15083109312.

The previous prime is 15240225113. The next prime is 15240225173. The reversal of 15240225131 is 13152204251.

15240225131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15240225131 - 2⁶ = 15240225067 is a prime.

It is a super-2 number, since 2×15240225131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15240225131.

It is not an unprimeable number, because it can be changed into a prime (15240225181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78557765 + ... + 78557958.

It is an arithmetic number, because the mean of its divisors is an integer number (3849335238).

Almost surely, 2^15240225131 is an apocalyptic number.

15240225131 is a deficient number, since it is larger than the sum of its proper divisors (157115821).

15240225131 is an equidigital number, since it uses as much as digits as its factorization.

15240225131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157115820.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 15240225131 its reverse (13152204251), we get a palindrome (28392429382).

The spelling of 15240225131 in words is "fifteen billion, two hundred forty million, two hundred twenty-five thousand, one hundred thirty-one".