129235739154 has 16 divisors (see below), whose sum is σ = 258475064448. Its totient is φ = 43077982032.

The previous prime is 129235739153. The next prime is 129235739183. The reversal of 129235739154 is 451937532921.

It is a junction number, because it is equal to n+sod(n) for n = 129235739097 and 129235739106.

It is not an unprimeable number, because it can be changed into a prime (129235739153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639399 + ... + 816885.

It is an arithmetic number, because the mean of its divisors is an integer number (16154691528).

Almost surely, 2^129235739154 is an apocalyptic number.

129235739154 is an abundant number, since it is smaller than the sum of its proper divisors (129239325294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129235739154 is a wasteful number, since it uses less digits than its factorization.

129235739154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298849.

The product of its digits is 2041200, while the sum is 51.

The spelling of 129235739154 in words is "one hundred twenty-nine billion, two hundred thirty-five million, seven hundred thirty-nine thousand, one hundred fifty-four".