129689162 has 8 divisors (see below), whose sum is σ = 195042816. Its totient is φ = 64674892.

The previous prime is 129689143. The next prime is 129689167. The reversal of 129689162 is 261986921.

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

It is not an unprimeable number, because it can be changed into a prime (129689167) 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, 83888 + ... + 85419.

It is an arithmetic number, because the mean of its divisors is an integer number (24380352).

Almost surely, 2^129689162 is an apocalyptic number.

129689162 is a deficient number, since it is larger than the sum of its proper divisors (65353654).

129689162 is a wasteful number, since it uses less digits than its factorization.

129689162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169692.

The product of its digits is 93312, while the sum is 44.

The square root of 129689162 is about 11388.1149449766. The cubic root of 129689162 is about 506.1756252676.

The spelling of 129689162 in words is "one hundred twenty-nine million, six hundred eighty-nine thousand, one hundred sixty-two".