129087488 has 24 divisors (see below), whose sum is σ = 258116040. Its totient is φ = 64542720.

The previous prime is 129087481. The next prime is 129087533. The reversal of 129087488 is 884780921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129087481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29468 + ... + 33563.

It is an arithmetic number, because the mean of its divisors is an integer number (10754835).

Almost surely, 2^129087488 is an apocalyptic number.

It is an amenable number.

129087488 is a deficient number, since it is larger than the sum of its proper divisors (129028552).

129087488 is an frugal number, since it uses more digits than its factorization.

129087488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63053 (or 63033 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 129087488 is about 11361.6674832526. The cubic root of 129087488 is about 505.3916355542.

The spelling of 129087488 in words is "one hundred twenty-nine million, eighty-seven thousand, four hundred eighty-eight".