129750968 has 8 divisors (see below), whose sum is σ = 243283080. Its totient is φ = 64875480.

The previous prime is 129750961. The next prime is 129750977. The reversal of 129750968 is 869057921.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129750961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8109428 + ... + 8109443.

It is an arithmetic number, because the mean of its divisors is an integer number (30410385).

Almost surely, 2^129750968 is an apocalyptic number.

It is an amenable number.

129750968 is a deficient number, since it is larger than the sum of its proper divisors (113532112).

129750968 is a wasteful number, since it uses less digits than its factorization.

129750968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16218877 (or 16218873 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 129750968 is about 11390.8282402993. The cubic root of 129750968 is about 506.2560219169.

The spelling of 129750968 in words is "one hundred twenty-nine million, seven hundred fifty thousand, nine hundred sixty-eight".