122575861 has 2 divisors, whose sum is σ = 122575862. Its totient is φ = 122575860.

The previous prime is 122575823. The next prime is 122575867. The reversal of 122575861 is 168575221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94284100 + 28291761 = 9710^2 + 5319^2 .

It is a cyclic number.

It is not a de Polignac number, because 122575861 - 2²³ = 114187253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122575861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122575867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61287930 + 61287931.

It is an arithmetic number, because the mean of its divisors is an integer number (61287931).

Almost surely, 2^122575861 is an apocalyptic number.

It is an amenable number.

122575861 is a deficient number, since it is larger than the sum of its proper divisors (1).

122575861 is an equidigital number, since it uses as much as digits as its factorization.

122575861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 37.

The square root of 122575861 is about 11071.3983308343. The cubic root of 122575861 is about 496.7466925588.

The spelling of 122575861 in words is "one hundred twenty-two million, five hundred seventy-five thousand, eight hundred sixty-one".