45071111 has 2 divisors, whose sum is σ = 45071112. Its totient is φ = 45071110.

The previous prime is 45071107. The next prime is 45071119. The reversal of 45071111 is 11117054.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45071111 - 2² = 45071107 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45071119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22535555 + 22535556.

It is an arithmetic number, because the mean of its divisors is an integer number (22535556).

Almost surely, 2^45071111 is an apocalyptic number.

45071111 is a deficient number, since it is larger than the sum of its proper divisors (1).

45071111 is an equidigital number, since it uses as much as digits as its factorization.

45071111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 45071111 is about 6713.5021412077. The cubic root of 45071111 is about 355.8765905408.

Adding to 45071111 its reverse (11117054), we get a palindrome (56188165).

The spelling of 45071111 in words is "forty-five million, seventy-one thousand, one hundred eleven".