90118337 has 2 divisors, whose sum is σ = 90118338. Its totient is φ = 90118336.

The previous prime is 90118331. The next prime is 90118363. The reversal of 90118337 is 73381109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89794576 + 323761 = 9476^2 + 569^2 .

It is a cyclic number.

It is not a de Polignac number, because 90118337 - 2⁴ = 90118321 is a prime.

It is a Chen prime.

It is equal to p_5223479 and since 90118337 and 5223479 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (90118331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45059168 + 45059169.

It is an arithmetic number, because the mean of its divisors is an integer number (45059169).

Almost surely, 2^90118337 is an apocalyptic number.

It is an amenable number.

90118337 is a deficient number, since it is larger than the sum of its proper divisors (1).

90118337 is an equidigital number, since it uses as much as digits as its factorization.

90118337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 90118337 is about 9493.0678392183. The cubic root of 90118337 is about 448.3368019644.

The spelling of 90118337 in words is "ninety million, one hundred eighteen thousand, three hundred thirty-seven".