122577881 has 2 divisors, whose sum is σ = 122577882. Its totient is φ = 122577880.

The previous prime is 122577863. The next prime is 122577899. The reversal of 122577881 is 188775221.

It is a balanced prime because it is at equal distance from previous prime (122577863) and next prime (122577899).

It can be written as a sum of positive squares in only one way, i.e., 72522256 + 50055625 = 8516^2 + 7075^2 .

It is a cyclic number.

It is not a de Polignac number, because 122577881 - 2²⁶ = 55469017 is a prime.

It is a super-2 number, since 2×122577881² = 30050673820900322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122577841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61288940 + 61288941.

It is an arithmetic number, because the mean of its divisors is an integer number (61288941).

Almost surely, 2^122577881 is an apocalyptic number.

It is an amenable number.

122577881 is a deficient number, since it is larger than the sum of its proper divisors (1).

122577881 is an equidigital number, since it uses as much as digits as its factorization.

122577881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62720, while the sum is 41.

The square root of 122577881 is about 11071.4895565141. The cubic root of 122577881 is about 496.7494212711.

The spelling of 122577881 in words is "one hundred twenty-two million, five hundred seventy-seven thousand, eight hundred eighty-one".