129936950 has 96 divisors (see below), whose sum is σ = 300918240. Its totient is φ = 41011200.

The previous prime is 129936949. The next prime is 129936977. The reversal of 129936950 is 59639921.

It is a super-2 number, since 2×129936950² = 33767221950605000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121016 + ... + 122084.

It is an arithmetic number, because the mean of its divisors is an integer number (3134565).

Almost surely, 2^129936950 is an apocalyptic number.

129936950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129936950 is an abundant number, since it is smaller than the sum of its proper divisors (170981290).

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

129936950 is a wasteful number, since it uses less digits than its factorization.

129936950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 44.

The square root of 129936950 is about 11398.9889902570. The cubic root of 129936950 is about 506.4977916147.

The spelling of 129936950 in words is "one hundred twenty-nine million, nine hundred thirty-six thousand, nine hundred fifty".