190126823 has 2 divisors, whose sum is σ = 190126824. Its totient is φ = 190126822.

The previous prime is 190126777. The next prime is 190126829. The reversal of 190126823 is 328621091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190126823 - 2¹² = 190122727 is a prime.

It is a super-2 number, since 2×190126823² = 72296417648146658, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190126823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190126829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95063411 + 95063412.

It is an arithmetic number, because the mean of its divisors is an integer number (95063412).

Almost surely, 2^190126823 is an apocalyptic number.

190126823 is a deficient number, since it is larger than the sum of its proper divisors (1).

190126823 is an equidigital number, since it uses as much as digits as its factorization.

190126823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 190126823 is about 13788.6483383978. The cubic root of 190126823 is about 575.0175903881.

The spelling of 190126823 in words is "one hundred ninety million, one hundred twenty-six thousand, eight hundred twenty-three".