129515752054 has 16 divisors (see below), whose sum is σ = 209393174592. Its totient is φ = 59726380608.

The previous prime is 129515752039. The next prime is 129515752057. The reversal of 129515752054 is 450257515921.

129515752054 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×129515752054² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 129515751995 and 129515752013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129515752057) 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, 2056734 + ... + 2118769.

It is an arithmetic number, because the mean of its divisors is an integer number (13087073412).

Almost surely, 2^129515752054 is an apocalyptic number.

129515752054 is a deficient number, since it is larger than the sum of its proper divisors (79877422538).

129515752054 is a wasteful number, since it uses less digits than its factorization.

129515752054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176711.

The product of its (nonzero) digits is 630000, while the sum is 46.

The spelling of 129515752054 in words is "one hundred twenty-nine billion, five hundred fifteen million, seven hundred fifty-two thousand, fifty-four".