90601111 has 2 divisors, whose sum is σ = 90601112. Its totient is φ = 90601110.

The previous prime is 90601099. The next prime is 90601151. The reversal of 90601111 is 11110609.

It is a weak prime.

It is an emirp because it is prime and its reverse (11110609) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90601111 - 2¹⁵ = 90568343 is a prime.

It is a super-2 number, since 2×90601111² = 16417122628868642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90601151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45300555 + 45300556.

It is an arithmetic number, because the mean of its divisors is an integer number (45300556).

Almost surely, 2^90601111 is an apocalyptic number.

90601111 is a deficient number, since it is larger than the sum of its proper divisors (1).

90601111 is an equidigital number, since it uses as much as digits as its factorization.

90601111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 90601111 is about 9518.4615878828. The cubic root of 90601111 is about 449.1359733552.

The spelling of 90601111 in words is "ninety million, six hundred one thousand, one hundred eleven".