194237419 has 2 divisors, whose sum is σ = 194237420. Its totient is φ = 194237418.

The previous prime is 194237401. The next prime is 194237429. The reversal of 194237419 is 914732491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194237419 - 2⁵ = 194237387 is a prime.

It is a super-2 number, since 2×194237419² = 75456349879563122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (194237429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97118709 + 97118710.

It is an arithmetic number, because the mean of its divisors is an integer number (97118710).

Almost surely, 2^194237419 is an apocalyptic number.

194237419 is a deficient number, since it is larger than the sum of its proper divisors (1).

194237419 is an equidigital number, since it uses as much as digits as its factorization.

194237419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 194237419 is about 13936.9085165972. The cubic root of 194237419 is about 579.1320937169.

The spelling of 194237419 in words is "one hundred ninety-four million, two hundred thirty-seven thousand, four hundred nineteen".