190045231 has 2 divisors, whose sum is σ = 190045232. Its totient is φ = 190045230.

The previous prime is 190045223. The next prime is 190045241. The reversal of 190045231 is 132540091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 190045231 - 2³ = 190045223 is a prime.

It is a super-2 number, since 2×190045231² = 72234379651686722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190045196 and 190045205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190045241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95022615 + 95022616.

It is an arithmetic number, because the mean of its divisors is an integer number (95022616).

Almost surely, 2^190045231 is an apocalyptic number.

190045231 is a deficient number, since it is larger than the sum of its proper divisors (1).

190045231 is an equidigital number, since it uses as much as digits as its factorization.

190045231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 190045231 is about 13785.6893552698. The cubic root of 190045231 is about 574.9353232862.

The spelling of 190045231 in words is "one hundred ninety million, forty-five thousand, two hundred thirty-one".