290212249 has 2 divisors, whose sum is σ = 290212250. Its totient is φ = 290212248.

The previous prime is 290212211. The next prime is 290212261. The reversal of 290212249 is 942212092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164660224 + 125552025 = 12832^2 + 11205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-290212249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 290212249.

It is not a weakly prime, because it can be changed into another prime (290215249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145106124 + 145106125.

It is an arithmetic number, because the mean of its divisors is an integer number (145106125).

Almost surely, 2^290212249 is an apocalyptic number.

It is an amenable number.

290212249 is a deficient number, since it is larger than the sum of its proper divisors (1).

290212249 is an equidigital number, since it uses as much as digits as its factorization.

290212249 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 31.

The square root of 290212249 is about 17035.6170713009. The cubic root of 290212249 is about 662.0720380224.

It can be divided in two parts, 2902 and 12249, that added together give a palindrome (15151).

The spelling of 290212249 in words is "two hundred ninety million, two hundred twelve thousand, two hundred forty-nine".