15012133542 has 80 divisors (see below), whose sum is σ = 38540807712. Its totient is φ = 4278355200.

The previous prime is 15012133531. The next prime is 15012133573. The reversal of 15012133542 is 24533121051.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 438228 + ... + 471240.

Almost surely, 2^15012133542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15012133542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19270403856).

15012133542 is an abundant number, since it is smaller than the sum of its proper divisors (23528674170).

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

15012133542 is a wasteful number, since it uses less digits than its factorization.

15012133542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33435 (or 33426 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 15012133542 its reverse (24533121051), we get a palindrome (39545254593).

The spelling of 15012133542 in words is "fifteen billion, twelve million, one hundred thirty-three thousand, five hundred forty-two".