12537505154 has 8 divisors (see below), whose sum is σ = 18807616380. Its totient is φ = 6268299696.

The previous prime is 12537505111. The next prime is 12537505159. The reversal of 12537505154 is 45150573521.

It can be written as a sum of positive squares in 2 ways, for example, as 12449426929 + 88078225 = 111577^2 + 9385^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12537505159) 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, 190709 + ... + 247880.

Almost surely, 2^12537505154 is an apocalyptic number.

12537505154 is a deficient number, since it is larger than the sum of its proper divisors (6270111226).

12537505154 is a wasteful number, since it uses less digits than its factorization.

12537505154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452884.

The product of its (nonzero) digits is 105000, while the sum is 38.

The spelling of 12537505154 in words is "twelve billion, five hundred thirty-seven million, five hundred five thousand, one hundred fifty-four".