123190894 has 8 divisors (see below), whose sum is σ = 185506128. Its totient is φ = 61355520.

The previous prime is 123190883. The next prime is 123190897. The reversal of 123190894 is 498091321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123190897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119322 + ... + 120349.

It is an arithmetic number, because the mean of its divisors is an integer number (23188266).

Almost surely, 2^123190894 is an apocalyptic number.

123190894 is a deficient number, since it is larger than the sum of its proper divisors (62315234).

123190894 is a wasteful number, since it uses less digits than its factorization.

123190894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239930.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 123190894 is about 11099.1393360026. The cubic root of 123190894 is about 497.5761273368.

The spelling of 123190894 in words is "one hundred twenty-three million, one hundred ninety thousand, eight hundred ninety-four".