45109111 has 2 divisors, whose sum is σ = 45109112. Its totient is φ = 45109110.

The previous prime is 45109091. The next prime is 45109117. The reversal of 45109111 is 11190154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45109111 - 2²³ = 36720503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45109117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22554555 + 22554556.

It is an arithmetic number, because the mean of its divisors is an integer number (22554556).

Almost surely, 2^45109111 is an apocalyptic number.

45109111 is a deficient number, since it is larger than the sum of its proper divisors (1).

45109111 is an equidigital number, since it uses as much as digits as its factorization.

45109111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 45109111 is about 6716.3316624479. The cubic root of 45109111 is about 355.9765770685.

Adding to 45109111 its reverse (11190154), we get a palindrome (56299265).

The spelling of 45109111 in words is "forty-five million, one hundred nine thousand, one hundred eleven".