545918111 has 2 divisors, whose sum is σ = 545918112. Its totient is φ = 545918110.

The previous prime is 545918099. The next prime is 545918117. The reversal of 545918111 is 111819545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545918111 - 2⁶ = 545918047 is a prime.

It is a Sophie Germain prime.

It is equal to p_28642337 and since 545918111 and 28642337 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545918117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272959055 + 272959056.

It is an arithmetic number, because the mean of its divisors is an integer number (272959056).

Almost surely, 2^545918111 is an apocalyptic number.

545918111 is a deficient number, since it is larger than the sum of its proper divisors (1).

545918111 is an equidigital number, since it uses as much as digits as its factorization.

545918111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 35.

The square root of 545918111 is about 23364.8905625513. The cubic root of 545918111 is about 817.2893394920.

The spelling of 545918111 in words is "five hundred forty-five million, nine hundred eighteen thousand, one hundred eleven".