12154613052 has 72 divisors (see below), whose sum is σ = 30320722432. Its totient is φ = 3785544000.

The previous prime is 12154613041. The next prime is 12154613059. The reversal of 12154613052 is 25031645121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12154613059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293427 + ... + 332277.

Almost surely, 2^12154613052 is an apocalyptic number.

12154613052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12154613052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15160361216).

12154613052 is an abundant number, since it is smaller than the sum of its proper divisors (18166109380).

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

12154613052 is a wasteful number, since it uses less digits than its factorization.

12154613052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38947 (or 38916 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 12154613052 in words is "twelve billion, one hundred fifty-four million, six hundred thirteen thousand, fifty-two".