129683054 has 4 divisors (see below), whose sum is σ = 194524584. Its totient is φ = 64841526.

The previous prime is 129683053. The next prime is 129683087. The reversal of 129683054 is 450386921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450386921 = 499 ⋅902579.

It is a junction number, because it is equal to n+sod(n) for n = 129682999 and 129683017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129683051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32420762 + ... + 32420765.

It is an arithmetic number, because the mean of its divisors is an integer number (48631146).

Almost surely, 2^129683054 is an apocalyptic number.

129683054 is a deficient number, since it is larger than the sum of its proper divisors (64841530).

129683054 is an equidigital number, since it uses as much as digits as its factorization.

129683054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64841529.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 129683054 is about 11387.8467674974. The cubic root of 129683054 is about 506.1676786533.

The spelling of 129683054 in words is "one hundred twenty-nine million, six hundred eighty-three thousand, fifty-four".