872159111 has 2 divisors, whose sum is σ = 872159112. Its totient is φ = 872159110.

The previous prime is 872159083. The next prime is 872159117. The reversal of 872159111 is 111951278.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-872159111 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 (872159117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436079555 + 436079556.

It is an arithmetic number, because the mean of its divisors is an integer number (436079556).

Almost surely, 2^872159111 is an apocalyptic number.

872159111 is a deficient number, since it is larger than the sum of its proper divisors (1).

872159111 is an equidigital number, since it uses as much as digits as its factorization.

872159111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 35.

The square root of 872159111 is about 29532.3400867591. The cubic root of 872159111 is about 955.4293404991.

The spelling of 872159111 in words is "eight hundred seventy-two million, one hundred fifty-nine thousand, one hundred eleven".