195129088 has 144 divisors (see below), whose sum is σ = 512144640. Its totient is φ = 71884800.

The previous prime is 195129061. The next prime is 195129133. The reversal of 195129088 is 880921591.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

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, 374268 + ... + 374788.

It is an arithmetic number, because the mean of its divisors is an integer number (3556560).

Almost surely, 2^195129088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195129088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256072320).

195129088 is an abundant number, since it is smaller than the sum of its proper divisors (317015552).

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

195129088 is a wasteful number, since it uses less digits than its factorization.

195129088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 43.

The square root of 195129088 is about 13968.8613709207. The cubic root of 195129088 is about 580.0169317293.

The spelling of 195129088 in words is "one hundred ninety-five million, one hundred twenty-nine thousand, eighty-eight".