129751048 has 32 divisors (see below), whose sum is σ = 278732160. Its totient is φ = 55468800.

The previous prime is 129751033. The next prime is 129751051. The reversal of 129751048 is 840157921.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 129750998 and 129751016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21573 + ... + 26923.

It is an arithmetic number, because the mean of its divisors is an integer number (8710380).

Almost surely, 2^129751048 is an apocalyptic number.

It is an amenable number.

129751048 is an abundant number, since it is smaller than the sum of its proper divisors (148981112).

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

129751048 is a wasteful number, since it uses less digits than its factorization.

129751048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5797 (or 5793 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 129751048 is about 11390.8317518959. The cubic root of 129751048 is about 506.2561259636.

The spelling of 129751048 in words is "one hundred twenty-nine million, seven hundred fifty-one thousand, forty-eight".