129175498142 has 8 divisors (see below), whose sum is σ = 193896605496. Its totient is φ = 64543296312.

The previous prime is 129175498141. The next prime is 129175498147. The reversal of 129175498142 is 241894571921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129175498141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22222748 + ... + 22228559.

It is an arithmetic number, because the mean of its divisors is an integer number (24237075687).

Almost surely, 2^129175498142 is an apocalyptic number.

129175498142 is a deficient number, since it is larger than the sum of its proper divisors (64721107354).

129175498142 is a wasteful number, since it uses less digits than its factorization.

129175498142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44452762.

The product of its digits is 1451520, while the sum is 53.

The spelling of 129175498142 in words is "one hundred twenty-nine billion, one hundred seventy-five million, four hundred ninety-eight thousand, one hundred forty-two".