129515141515294 has 12 divisors (see below), whose sum is σ = 195701112046944. Its totient is φ = 64284887740784.

The previous prime is 129515141515283. The next prime is 129515141515301. The reversal of 129515141515294 is 492515141515921.

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 5 ways as a sum of consecutive naturals, for example, 1725082894 + ... + 1725157969.

It is an arithmetic number, because the mean of its divisors is an integer number (16308426003912).

Almost surely, 2^{129515141515294} is an apocalyptic number.

129515141515294 is a deficient number, since it is larger than the sum of its proper divisors (66185970531650).

129515141515294 is an equidigital number, since it uses as much as digits as its factorization.

129515141515294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3450241139 (or 3450241002 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 55.

The spelling of 129515141515294 in words is "one hundred twenty-nine trillion, five hundred fifteen billion, one hundred forty-one million, five hundred fifteen thousand, two hundred ninety-four".