90618107 has 2 divisors, whose sum is σ = 90618108. Its totient is φ = 90618106.

The previous prime is 90618089. The next prime is 90618119. The reversal of 90618107 is 70181609.

It is a strong prime.

It is an emirp because it is prime and its reverse (70181609) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90618107 - 2⁸ = 90617851 is a prime.

It is not a weakly prime, because it can be changed into another prime (90618197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45309053 + 45309054.

It is an arithmetic number, because the mean of its divisors is an integer number (45309054).

Almost surely, 2^90618107 is an apocalyptic number.

90618107 is a deficient number, since it is larger than the sum of its proper divisors (1).

90618107 is an equidigital number, since it uses as much as digits as its factorization.

90618107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 90618107 is about 9519.3543373487. The cubic root of 90618107 is about 449.1640562990.

The spelling of 90618107 in words is "ninety million, six hundred eighteen thousand, one hundred seven".