129850992 has 40 divisors (see below), whose sum is σ = 372721680. Its totient is φ = 43283520.

The previous prime is 129850961. The next prime is 129851003. The reversal of 129850992 is 299058921.

It is a super-2 number, since 2×129850992² = 33722560246768128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 149859 + ... + 150722.

It is an arithmetic number, because the mean of its divisors is an integer number (9318042).

Almost surely, 2^129850992 is an apocalyptic number.

129850992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129850992 is an abundant number, since it is smaller than the sum of its proper divisors (242870688).

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

129850992 is a wasteful number, since it uses less digits than its factorization.

129850992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300598 (or 300586 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 129850992 is about 11395.2179443835. The cubic root of 129850992 is about 506.3860780971.

The spelling of 129850992 in words is "one hundred twenty-nine million, eight hundred fifty thousand, nine hundred ninety-two".