12540153004 has 12 divisors (see below), whose sum is σ = 21987231784. Its totient is φ = 6258086784.

The previous prime is 12540152993. The next prime is 12540153011. The reversal of 12540153004 is 40035104521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12540153004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2995077 + ... + 2999260.

Almost surely, 2^12540153004 is an apocalyptic number.

It is an amenable number.

12540153004 is a deficient number, since it is larger than the sum of its proper divisors (9447078780).

12540153004 is a wasteful number, since it uses less digits than its factorization.

12540153004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994864 (or 5994862 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 12540153004 its reverse (40035104521), we get a palindrome (52575257525).

The spelling of 12540153004 in words is "twelve billion, five hundred forty million, one hundred fifty-three thousand, four".