12150501554 has 4 divisors (see below), whose sum is σ = 18225752334. Its totient is φ = 6075250776.

The previous prime is 12150501547. The next prime is 12150501599. The reversal of 12150501554 is 45510505121.

12150501554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45510505121 = 73 ⋅623431577.

It can be written as a sum of positive squares in only one way, i.e., 10842015625 + 1308485929 = 104125^2 + 36173^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3037625387 + ... + 3037625390.

Almost surely, 2^12150501554 is an apocalyptic number.

12150501554 is a deficient number, since it is larger than the sum of its proper divisors (6075250780).

12150501554 is an equidigital number, since it uses as much as digits as its factorization.

12150501554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075250779.

The product of its (nonzero) digits is 5000, while the sum is 29.

The spelling of 12150501554 in words is "twelve billion, one hundred fifty million, five hundred one thousand, five hundred fifty-four".