194248231 has 2 divisors, whose sum is σ = 194248232. Its totient is φ = 194248230.

The previous prime is 194248207. The next prime is 194248253. The reversal of 194248231 is 132842491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194248231 - 2⁵ = 194248199 is a prime.

It is a super-2 number, since 2×194248231² = 75464750493258722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194248031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97124115 + 97124116.

It is an arithmetic number, because the mean of its divisors is an integer number (97124116).

Almost surely, 2^194248231 is an apocalyptic number.

194248231 is a deficient number, since it is larger than the sum of its proper divisors (1).

194248231 is an equidigital number, since it uses as much as digits as its factorization.

194248231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 34.

The square root of 194248231 is about 13937.2964021004. The cubic root of 194248231 is about 579.1428390890.

The spelling of 194248231 in words is "one hundred ninety-four million, two hundred forty-eight thousand, two hundred thirty-one".