902242213 has 2 divisors, whose sum is σ = 902242214. Its totient is φ = 902242212.

The previous prime is 902242181. The next prime is 902242283. The reversal of 902242213 is 312242209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463842369 + 438399844 = 21537^2 + 20938^2 .

It is an emirp because it is prime and its reverse (312242209) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 902242213 - 2⁵ = 902242181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (902242283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451121106 + 451121107.

It is an arithmetic number, because the mean of its divisors is an integer number (451121107).

Almost surely, 2^902242213 is an apocalyptic number.

It is an amenable number.

902242213 is a deficient number, since it is larger than the sum of its proper divisors (1).

902242213 is an equidigital number, since it uses as much as digits as its factorization.

902242213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 902242213 is about 30037.3469700638. The cubic root of 902242213 is about 966.2905096241.

The spelling of 902242213 in words is "nine hundred two million, two hundred forty-two thousand, two hundred thirteen".