190908129 has 16 divisors (see below), whose sum is σ = 260259840. Its totient is φ = 124437840.

The previous prime is 190908097. The next prime is 190908139. The reversal of 190908129 is 921809091.

It is a happy number.

It is not a de Polignac number, because 190908129 - 2⁵ = 190908097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190908139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30984 + ... + 36630.

It is an arithmetic number, because the mean of its divisors is an integer number (16266240).

Almost surely, 2^190908129 is an apocalyptic number.

It is an amenable number.

190908129 is a deficient number, since it is larger than the sum of its proper divisors (69351711).

190908129 is a wasteful number, since it uses less digits than its factorization.

190908129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900.

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 190908129 is about 13816.9507851769. The cubic root of 190908129 is about 575.8041718318.

The spelling of 190908129 in words is "one hundred ninety million, nine hundred eight thousand, one hundred twenty-nine".