129447102 has 32 divisors (see below), whose sum is σ = 263129472. Its totient is φ = 42449184.

The previous prime is 129447091. The next prime is 129447113. The reversal of 129447102 is 201744921.

It is an interprime number because it is at equal distance from previous prime (129447091) and next prime (129447113).

It is a self number, because there is not a number n which added to its sum of digits gives 129447102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104028 + ... + 105264.

It is an arithmetic number, because the mean of its divisors is an integer number (8222796).

Almost surely, 2^129447102 is an apocalyptic number.

129447102 is an abundant number, since it is smaller than the sum of its proper divisors (133682370).

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

129447102 is a wasteful number, since it uses less digits than its factorization.

129447102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 129447102 is about 11377.4822346598. The cubic root of 129447102 is about 505.8605098062.

The spelling of 129447102 in words is "one hundred twenty-nine million, four hundred forty-seven thousand, one hundred two".