15258131061 has 4 divisors (see below), whose sum is σ = 20344174752. Its totient is φ = 10172087372.

The previous prime is 15258131047. The next prime is 15258131101. The reversal of 15258131061 is 16013185251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15258131061 - 2⁵ = 15258131029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15258131011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2543021841 + ... + 2543021846.

It is an arithmetic number, because the mean of its divisors is an integer number (5086043688).

Almost surely, 2^15258131061 is an apocalyptic number.

It is an amenable number.

15258131061 is a deficient number, since it is larger than the sum of its proper divisors (5086043691).

15258131061 is an equidigital number, since it uses as much as digits as its factorization.

15258131061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086043690.

The product of its (nonzero) digits is 7200, while the sum is 33.

The spelling of 15258131061 in words is "fifteen billion, two hundred fifty-eight million, one hundred thirty-one thousand, sixty-one".