190634121 has 8 divisors (see below), whose sum is σ = 282420960. Its totient is φ = 127089396.

The previous prime is 190634117. The next prime is 190634123. The reversal of 190634121 is 121436091.

190634121 is a `hidden beast` number, since 1 + 9 + 0 + 634 + 1 + 21 = 666.

190634121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 190634121 - 2² = 190634117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 7060523 = 190634121 / (1 + 9 + 0 + 6 + 3 + 4 + 1 + 2 + 1).

It is not an unprimeable number, because it can be changed into a prime (190634123) 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, 3530235 + ... + 3530288.

It is an arithmetic number, because the mean of its divisors is an integer number (35302620).

Almost surely, 2^190634121 is an apocalyptic number.

It is an amenable number.

190634121 is a deficient number, since it is larger than the sum of its proper divisors (91786839).

190634121 is an equidigital number, since it uses as much as digits as its factorization.

190634121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060532 (or 7060526 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 190634121 is about 13807.0315781489. The cubic root of 190634121 is about 575.5285584697.

The spelling of 190634121 in words is "one hundred ninety million, six hundred thirty-four thousand, one hundred twenty-one".