90241237 has 2 divisors, whose sum is σ = 90241238. Its totient is φ = 90241236.

The previous prime is 90241231. The next prime is 90241303. The reversal of 90241237 is 73214209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76632516 + 13608721 = 8754^2 + 3689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90241237 is a prime.

It is a super-3 number, since 3×90241237³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90241231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45120618 + 45120619.

It is an arithmetic number, because the mean of its divisors is an integer number (45120619).

Almost surely, 2^90241237 is an apocalyptic number.

It is an amenable number.

90241237 is a deficient number, since it is larger than the sum of its proper divisors (1).

90241237 is an equidigital number, since it uses as much as digits as its factorization.

90241237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 90241237 is about 9499.5387782776. The cubic root of 90241237 is about 448.5405176776.

The spelling of 90241237 in words is "ninety million, two hundred forty-one thousand, two hundred thirty-seven".