129901560 has 64 divisors (see below), whose sum is σ = 390614400. Its totient is φ = 34559616.

The previous prime is 129901559. The next prime is 129901567. The reversal of 129901560 is 65109921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129901567) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 64651 + ... + 66629.

It is an arithmetic number, because the mean of its divisors is an integer number (6103350).

Almost surely, 2^129901560 is an apocalyptic number.

129901560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129901560 is an abundant number, since it is smaller than the sum of its proper divisors (260712840).

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

129901560 is a wasteful number, since it uses less digits than its factorization.

129901560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540 (or 2536 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 129901560 is about 11397.4365538923. The cubic root of 129901560 is about 506.4518037094.

The spelling of 129901560 in words is "one hundred twenty-nine million, nine hundred one thousand, five hundred sixty".