129734846 has 4 divisors (see below), whose sum is σ = 194602272. Its totient is φ = 64867422.

The previous prime is 129734819. The next prime is 129734849. The reversal of 129734846 is 648437921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 648437921 = 1187 ⋅546283.

It is a super-2 number, since 2×129734846² = 33662260533287432, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 129734797 and 129734806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129734849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32433710 + ... + 32433713.

It is an arithmetic number, because the mean of its divisors is an integer number (48650568).

Almost surely, 2^129734846 is an apocalyptic number.

129734846 is a deficient number, since it is larger than the sum of its proper divisors (64867426).

129734846 is an equidigital number, since it uses as much as digits as its factorization.

129734846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64867425.

The product of its digits is 290304, while the sum is 44.

The square root of 129734846 is about 11390.1205436993. The cubic root of 129734846 is about 506.2350530363.

The spelling of 129734846 in words is "one hundred twenty-nine million, seven hundred thirty-four thousand, eight hundred forty-six".