90010213 has 2 divisors, whose sum is σ = 90010214. Its totient is φ = 90010212.

The previous prime is 90010199. The next prime is 90010237. The reversal of 90010213 is 31201009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89737729 + 272484 = 9473^2 + 522^2 .

It is a cyclic number.

It is not a de Polignac number, because 90010213 - 2⁵ = 90010181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90010243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45005106 + 45005107.

It is an arithmetic number, because the mean of its divisors is an integer number (45005107).

Almost surely, 2^90010213 is an apocalyptic number.

It is an amenable number.

90010213 is a deficient number, since it is larger than the sum of its proper divisors (1).

90010213 is an equidigital number, since it uses as much as digits as its factorization.

90010213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 90010213 is about 9487.3712375979. The cubic root of 90010213 is about 448.1574253430.

The spelling of 90010213 in words is "ninety million, ten thousand, two hundred thirteen".