190281233 has 2 divisors, whose sum is σ = 190281234. Its totient is φ = 190281232.

The previous prime is 190281229. The next prime is 190281241. The reversal of 190281233 is 332182091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138109504 + 52171729 = 11752^2 + 7223^2 .

It is a cyclic number.

It is not a de Polignac number, because 190281233 - 2² = 190281229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190281196 and 190281205.

It is not a weakly prime, because it can be changed into another prime (190281253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95140616 + 95140617.

It is an arithmetic number, because the mean of its divisors is an integer number (95140617).

Almost surely, 2^190281233 is an apocalyptic number.

It is an amenable number.

190281233 is a deficient number, since it is larger than the sum of its proper divisors (1).

190281233 is an equidigital number, since it uses as much as digits as its factorization.

190281233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 190281233 is about 13794.2463730354. The cubic root of 190281233 is about 575.1732136002.

The spelling of 190281233 in words is "one hundred ninety million, two hundred eighty-one thousand, two hundred thirty-three".