154380129122 has 54 divisors (see below), whose sum is σ = 251139925827. Its totient is φ = 71160298368.

The previous prime is 154380129017. The next prime is 154380129133. The reversal of 154380129122 is 221921083451.

It can be written as a sum of positive squares in 5 ways, for example, as 67668137161 + 86711991961 = 260131^2 + 294469^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=277831.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 557328848 + ... + 557329124.

Almost surely, 2^154380129122 is an apocalyptic number.

154380129122 is a deficient number, since it is larger than the sum of its proper divisors (96759796705).

154380129122 is an frugal number, since it uses more digits than its factorization.

154380129122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 154380129122 in words is "one hundred fifty-four billion, three hundred eighty million, one hundred twenty-nine thousand, one hundred twenty-two".