111054491 has 2 divisors, whose sum is σ = 111054492. Its totient is φ = 111054490.

The previous prime is 111054481. The next prime is 111054547. The reversal of 111054491 is 194450111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111054491 - 2¹⁸ = 110792347 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111054491.

It is not a weakly prime, because it can be changed into another prime (111054401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55527245 + 55527246.

It is an arithmetic number, because the mean of its divisors is an integer number (55527246).

Almost surely, 2^111054491 is an apocalyptic number.

111054491 is a deficient number, since it is larger than the sum of its proper divisors (1).

111054491 is an equidigital number, since it uses as much as digits as its factorization.

111054491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 111054491 is about 10538.2394639712. The cubic root of 111054491 is about 480.6681825634.

The spelling of 111054491 in words is "one hundred eleven million, fifty-four thousand, four hundred ninety-one".