129733270 has 8 divisors (see below), whose sum is σ = 233519904. Its totient is φ = 51893304.

The previous prime is 129733267. The next prime is 129733277. The reversal of 129733270 is 72337921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129733277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6486654 + ... + 6486673.

It is an arithmetic number, because the mean of its divisors is an integer number (29189988).

Almost surely, 2^129733270 is an apocalyptic number.

129733270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129733270 is a deficient number, since it is larger than the sum of its proper divisors (103786634).

129733270 is a wasteful number, since it uses less digits than its factorization.

129733270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12973334.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 129733270 is about 11390.0513607270. The cubic root of 129733270 is about 506.2330031381.

The spelling of 129733270 in words is "one hundred twenty-nine million, seven hundred thirty-three thousand, two hundred seventy".