545332111 has 2 divisors, whose sum is σ = 545332112. Its totient is φ = 545332110.

The previous prime is 545332057. The next prime is 545332147. The reversal of 545332111 is 111233545.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545332111 - 2¹⁵ = 545299343 is a prime.

It is a super-2 number, since 2×545332111² = 594774222575432642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545330111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272666055 + 272666056.

It is an arithmetic number, because the mean of its divisors is an integer number (272666056).

Almost surely, 2^545332111 is an apocalyptic number.

545332111 is a deficient number, since it is larger than the sum of its proper divisors (1).

545332111 is an equidigital number, since it uses as much as digits as its factorization.

545332111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 545332111 is about 23352.3470126666. The cubic root of 545332111 is about 816.9968029311.

Adding to 545332111 its reverse (111233545), we get a palindrome (656565656).

It can be divided in two parts, 54533 and 2111, that added together give a square (56644 = 238²).

The spelling of 545332111 in words is "five hundred forty-five million, three hundred thirty-two thousand, one hundred eleven".