122842871 has 2 divisors, whose sum is σ = 122842872. Its totient is φ = 122842870.

The previous prime is 122842813. The next prime is 122842877. The reversal of 122842871 is 178248221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122842871 - 2⁶ = 122842807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122842877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61421435 + 61421436.

It is an arithmetic number, because the mean of its divisors is an integer number (61421436).

Almost surely, 2^122842871 is an apocalyptic number.

122842871 is a deficient number, since it is larger than the sum of its proper divisors (1).

122842871 is an equidigital number, since it uses as much as digits as its factorization.

122842871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14336, while the sum is 35.

The square root of 122842871 is about 11083.4503201846. The cubic root of 122842871 is about 497.1071228027.

The spelling of 122842871 in words is "one hundred twenty-two million, eight hundred forty-two thousand, eight hundred seventy-one".