190611658231 has 2 divisors, whose sum is σ = 190611658232. Its totient is φ = 190611658230.

The previous prime is 190611658213. The next prime is 190611658297. The reversal of 190611658231 is 132856116091.

Together with previous prime (190611658213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 190611658231 - 2⁷ = 190611658103 is a prime.

It is a super-2 number, since 2×190611658231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190611658631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95305829115 + 95305829116.

It is an arithmetic number, because the mean of its divisors is an integer number (95305829116).

Almost surely, 2^190611658231 is an apocalyptic number.

190611658231 is a deficient number, since it is larger than the sum of its proper divisors (1).

190611658231 is an equidigital number, since it uses as much as digits as its factorization.

190611658231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 43.

The spelling of 190611658231 in words is "one hundred ninety billion, six hundred eleven million, six hundred fifty-eight thousand, two hundred thirty-one".