154139129125 has 32 divisors (see below), whose sum is σ = 193904575488. Its totient is φ = 122327982400.

The previous prime is 154139129119. The next prime is 154139129147. The reversal of 154139129125 is 521921931451.

154139129125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 154139129125 - 2⁵ = 154139129093 is a prime.

It is a super-2 number, since 2×154139129125² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 10091244 + ... + 10106506.

It is an arithmetic number, because the mean of its divisors is an integer number (6059517984).

Almost surely, 2^154139129125 is an apocalyptic number.

It is an amenable number.

154139129125 is a deficient number, since it is larger than the sum of its proper divisors (39765446363).

154139129125 is a wasteful number, since it uses less digits than its factorization.

154139129125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15918 (or 15908 counting only the distinct ones).

The product of its digits is 97200, while the sum is 43.

The spelling of 154139129125 in words is "one hundred fifty-four billion, one hundred thirty-nine million, one hundred twenty-nine thousand, one hundred twenty-five".