15131114551 has 4 divisors (see below), whose sum is σ = 17292702352. Its totient is φ = 12969526752.

The previous prime is 15131114549. The next prime is 15131114561. The reversal of 15131114551 is 15541113151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15541113151 = 271 ⋅57347281.

It is not a de Polignac number, because 15131114551 - 2¹ = 15131114549 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 (15131114561) 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, 1080793890 + ... + 1080793903.

It is an arithmetic number, because the mean of its divisors is an integer number (4323175588).

Almost surely, 2^15131114551 is an apocalyptic number.

15131114551 is a deficient number, since it is larger than the sum of its proper divisors (2161587801).

15131114551 is an equidigital number, since it uses as much as digits as its factorization.

15131114551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161587800.

The product of its digits is 1500, while the sum is 28.

The spelling of 15131114551 in words is "fifteen billion, one hundred thirty-one million, one hundred fourteen thousand, five hundred fifty-one".