194902423 has 2 divisors, whose sum is σ = 194902424. Its totient is φ = 194902422.

The previous prime is 194902333. The next prime is 194902489. The reversal of 194902423 is 324209491.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194902423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194962423) 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 as a sum of consecutive naturals, namely, 97451211 + 97451212.

It is an arithmetic number, because the mean of its divisors is an integer number (97451212).

Almost surely, 2^194902423 is an apocalyptic number.

194902423 is a deficient number, since it is larger than the sum of its proper divisors (1).

194902423 is an equidigital number, since it uses as much as digits as its factorization.

194902423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 194902423 is about 13960.7457895343. The cubic root of 194902423 is about 579.7922591330.

The spelling of 194902423 in words is "one hundred ninety-four million, nine hundred two thousand, four hundred twenty-three".