194940923 has 2 divisors, whose sum is σ = 194940924. Its totient is φ = 194940922.

The previous prime is 194940919. The next prime is 194940947. The reversal of 194940923 is 329049491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 194940923 - 2² = 194940919 is a prime.

It is not a weakly prime, because it can be changed into another prime (194940023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97470461 + 97470462.

It is an arithmetic number, because the mean of its divisors is an integer number (97470462).

Almost surely, 2^194940923 is an apocalyptic number.

194940923 is a deficient number, since it is larger than the sum of its proper divisors (1).

194940923 is an equidigital number, since it uses as much as digits as its factorization.

194940923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 194940923 is about 13962.1245876120. The cubic root of 194940923 is about 579.8304329912.

The spelling of 194940923 in words is "one hundred ninety-four million, nine hundred forty thousand, nine hundred twenty-three".