190231963 has 2 divisors, whose sum is σ = 190231964. Its totient is φ = 190231962.

The previous prime is 190231939. The next prime is 190231981. The reversal of 190231963 is 369132091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190231963 - 2⁵ = 190231931 is a prime.

It is not a weakly prime, because it can be changed into another prime (190231913) 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, 95115981 + 95115982.

It is an arithmetic number, because the mean of its divisors is an integer number (95115982).

Almost surely, 2^190231963 is an apocalyptic number.

190231963 is a deficient number, since it is larger than the sum of its proper divisors (1).

190231963 is an equidigital number, since it uses as much as digits as its factorization.

190231963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 190231963 is about 13792.4603678967. The cubic root of 190231963 is about 575.1235656308.

The spelling of 190231963 in words is "one hundred ninety million, two hundred thirty-one thousand, nine hundred sixty-three".