190012123 has 8 divisors (see below), whose sum is σ = 217306880. Its totient is φ = 162754920.

The previous prime is 190012093. The next prime is 190012129. The reversal of 190012123 is 321210091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190012123 is a prime.

It is a super-2 number, since 2×190012123² = 72209213773934258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 190012123.

It is not an unprimeable number, because it can be changed into a prime (190012129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2458 + ... + 19648.

It is an arithmetic number, because the mean of its divisors is an integer number (27163360).

Almost surely, 2^190012123 is an apocalyptic number.

190012123 is a deficient number, since it is larger than the sum of its proper divisors (27294757).

190012123 is a wasteful number, since it uses less digits than its factorization.

190012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18777.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 190012123 is about 13784.4884925049. The cubic root of 190012123 is about 574.9019346308.

The spelling of 190012123 in words is "one hundred ninety million, twelve thousand, one hundred twenty-three".