129919662 has 12 divisors (see below), whose sum is σ = 281492640. Its totient is φ = 43306548.

The previous prime is 129919613. The next prime is 129919733. The reversal of 129919662 is 266919921.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3608862 + ... + 3608897.

It is an arithmetic number, because the mean of its divisors is an integer number (23457720).

Almost surely, 2^129919662 is an apocalyptic number.

129919662 is an abundant number, since it is smaller than the sum of its proper divisors (151572978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129919662 is a wasteful number, since it uses less digits than its factorization.

129919662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7217767 (or 7217764 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 129919662 is about 11398.2306521670. The cubic root of 129919662 is about 506.4753275858.

The spelling of 129919662 in words is "one hundred twenty-nine million, nine hundred nineteen thousand, six hundred sixty-two".