90311107 has 2 divisors, whose sum is σ = 90311108. Its totient is φ = 90311106.

The previous prime is 90311071. The next prime is 90311113. The reversal of 90311107 is 70111309.

Together with previous prime (90311071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90311107 - 2¹¹ = 90309059 is a prime.

It is not a weakly prime, because it can be changed into another prime (90311197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45155553 + 45155554.

It is an arithmetic number, because the mean of its divisors is an integer number (45155554).

Almost surely, 2^90311107 is an apocalyptic number.

90311107 is a deficient number, since it is larger than the sum of its proper divisors (1).

90311107 is an equidigital number, since it uses as much as digits as its factorization.

90311107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189, while the sum is 22.

The square root of 90311107 is about 9503.2156136752. The cubic root of 90311107 is about 448.6562498425.

The spelling of 90311107 in words is "ninety million, three hundred eleven thousand, one hundred seven".