90068201 has 2 divisors, whose sum is σ = 90068202. Its totient is φ = 90068200.

The previous prime is 90068191. The next prime is 90068221. The reversal of 90068201 is 10286009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68492176 + 21576025 = 8276^2 + 4645^2 .

It is an emirp because it is prime and its reverse (10286009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90068201 - 2¹⁴ = 90051817 is a prime.

It is a super-2 number, since 2×90068201² = 16224561662752802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (90068221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45034100 + 45034101.

It is an arithmetic number, because the mean of its divisors is an integer number (45034101).

Almost surely, 2^90068201 is an apocalyptic number.

It is an amenable number.

90068201 is a deficient number, since it is larger than the sum of its proper divisors (1).

90068201 is an equidigital number, since it uses as much as digits as its factorization.

90068201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 90068201 is about 9490.4268081051. The cubic root of 90068201 is about 448.2536446983.

The spelling of 90068201 in words is "ninety million, sixty-eight thousand, two hundred one".