129248898 has 32 divisors (see below), whose sum is σ = 263036160. Its totient is φ = 42332160.

The previous prime is 129248879. The next prime is 129248929. The reversal of 129248898 is 898842921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 129248898.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121288 + ... + 122348.

It is an arithmetic number, because the mean of its divisors is an integer number (8219880).

Almost surely, 2^129248898 is an apocalyptic number.

129248898 is an abundant number, since it is smaller than the sum of its proper divisors (133787262).

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

129248898 is a wasteful number, since it uses less digits than its factorization.

129248898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its digits is 663552, while the sum is 51.

The square root of 129248898 is about 11368.7685348942. The cubic root of 129248898 is about 505.6021937537.

The spelling of 129248898 in words is "one hundred twenty-nine million, two hundred forty-eight thousand, eight hundred ninety-eight".