15132554231 has 4 divisors (see below), whose sum is σ = 15139042872. Its totient is φ = 15126065592.

The previous prime is 15132554207. The next prime is 15132554279. The reversal of 15132554231 is 13245523151.

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 15132554231 - 2²² = 15128359927 is a prime.

It is a super-2 number, since 2×15132554231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15132154231) 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, 3240821 + ... + 3245486.

It is an arithmetic number, because the mean of its divisors is an integer number (3784760718).

Almost surely, 2^15132554231 is an apocalyptic number.

15132554231 is a deficient number, since it is larger than the sum of its proper divisors (6488641).

15132554231 is an equidigital number, since it uses as much as digits as its factorization.

15132554231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6488640.

The product of its digits is 18000, while the sum is 32.

The spelling of 15132554231 in words is "fifteen billion, one hundred thirty-two million, five hundred fifty-four thousand, two hundred thirty-one".