290130233 has 2 divisors, whose sum is σ = 290130234. Its totient is φ = 290130232.

The previous prime is 290130229. The next prime is 290130241. The reversal of 290130233 is 332031092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290089024 + 41209 = 17032^2 + 203^2 .

It is a cyclic number.

It is not a de Polignac number, because 290130233 - 2² = 290130229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 290130199 and 290130208.

It is not a weakly prime, because it can be changed into another prime (290130263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145065116 + 145065117.

It is an arithmetic number, because the mean of its divisors is an integer number (145065117).

Almost surely, 2^290130233 is an apocalyptic number.

It is an amenable number.

290130233 is a deficient number, since it is larger than the sum of its proper divisors (1).

290130233 is an equidigital number, since it uses as much as digits as its factorization.

290130233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 290130233 is about 17033.2097092709. The cubic root of 290130233 is about 662.0096634254.

The spelling of 290130233 in words is "two hundred ninety million, one hundred thirty thousand, two hundred thirty-three".