129813734 has 16 divisors (see below), whose sum is σ = 209558016. Its totient is φ = 60086400.

The previous prime is 129813731. The next prime is 129813763. The reversal of 129813734 is 437318921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129813731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29222 + ... + 33369.

It is an arithmetic number, because the mean of its divisors is an integer number (13097376).

Almost surely, 2^129813734 is an apocalyptic number.

129813734 is a deficient number, since it is larger than the sum of its proper divisors (79744282).

129813734 is a wasteful number, since it uses less digits than its factorization.

129813734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62671.

The product of its digits is 36288, while the sum is 38.

The square root of 129813734 is about 11393.5830185241. The cubic root of 129813734 is about 506.3376412003.

The spelling of 129813734 in words is "one hundred twenty-nine million, eight hundred thirteen thousand, seven hundred thirty-four".