945542111 has 2 divisors, whose sum is σ = 945542112. Its totient is φ = 945542110.

The previous prime is 945542107. The next prime is 945542113. The reversal of 945542111 is 111245549.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 945542111 - 2² = 945542107 is a prime.

Together with 945542113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (945542113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472771055 + 472771056.

It is an arithmetic number, because the mean of its divisors is an integer number (472771056).

Almost surely, 2^945542111 is an apocalyptic number.

945542111 is a deficient number, since it is larger than the sum of its proper divisors (1).

945542111 is an equidigital number, since it uses as much as digits as its factorization.

945542111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 32.

The square root of 945542111 is about 30749.6684697575. The cubic root of 945542111 is about 981.5075059717.

The spelling of 945542111 in words is "nine hundred forty-five million, five hundred forty-two thousand, one hundred eleven".