290223083 has 2 divisors, whose sum is σ = 290223084. Its totient is φ = 290223082.

The previous prime is 290223077. The next prime is 290223091. The reversal of 290223083 is 380322092.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 290223083 - 2⁶ = 290223019 is a prime.

It is a super-3 number, since 3×290223083³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (290222083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145111541 + 145111542.

It is an arithmetic number, because the mean of its divisors is an integer number (145111542).

Almost surely, 2^290223083 is an apocalyptic number.

290223083 is a deficient number, since it is larger than the sum of its proper divisors (1).

290223083 is an equidigital number, since it uses as much as digits as its factorization.

290223083 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 29.

The square root of 290223083 is about 17035.9350491835. The cubic root of 290223083 is about 662.0802765895.

Subtracting 290223083 from its reverse (380322092), we obtain a palindrome (90099009).

The spelling of 290223083 in words is "two hundred ninety million, two hundred twenty-three thousand, eighty-three".