190918122 has 16 divisors (see below), whose sum is σ = 385544640. Its totient is φ = 63021312.

The previous prime is 190918121. The next prime is 190918127. The reversal of 190918122 is 221819091.

It is not an unprimeable number, because it can be changed into a prime (190918121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153847 + ... + 155082.

It is an arithmetic number, because the mean of its divisors is an integer number (24096540).

Almost surely, 2^190918122 is an apocalyptic number.

190918122 is an abundant number, since it is smaller than the sum of its proper divisors (194626518).

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

190918122 is a wasteful number, since it uses less digits than its factorization.

190918122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309037.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 190918122 is about 13817.3124014766. The cubic root of 190918122 is about 575.8142183932.

The spelling of 190918122 in words is "one hundred ninety million, nine hundred eighteen thousand, one hundred twenty-two".