15131133234 has 96 divisors (see below), whose sum is σ = 40544824320. Its totient is φ = 4135195152.

The previous prime is 15131133229. The next prime is 15131133247. The reversal of 15131133234 is 43233113151.

15131133234 is a `hidden beast` number, since 1 + 513 + 113 + 3 + 2 + 34 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 15131133198 and 15131133207.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18444 + ... + 174935.

It is an arithmetic number, because the mean of its divisors is an integer number (422341920).

Almost surely, 2^15131133234 is an apocalyptic number.

15131133234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15131133234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20272412160).

15131133234 is an abundant number, since it is smaller than the sum of its proper divisors (25413691086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15131133234 is a wasteful number, since it uses less digits than its factorization.

15131133234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193426 (or 193414 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

Adding to 15131133234 its reverse (43233113151), we get a palindrome (58364246385).

The spelling of 15131133234 in words is "fifteen billion, one hundred thirty-one million, one hundred thirty-three thousand, two hundred thirty-four".