122552761 has 2 divisors, whose sum is σ = 122552762. Its totient is φ = 122552760.

The previous prime is 122552743. The next prime is 122552789. The reversal of 122552761 is 167255221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115154361 + 7398400 = 10731^2 + 2720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122552761 is a prime.

It is not a weakly prime, because it can be changed into another prime (122552741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61276380 + 61276381.

It is an arithmetic number, because the mean of its divisors is an integer number (61276381).

Almost surely, 2^122552761 is an apocalyptic number.

It is an amenable number.

122552761 is a deficient number, since it is larger than the sum of its proper divisors (1).

122552761 is an equidigital number, since it uses as much as digits as its factorization.

122552761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 31.

The square root of 122552761 is about 11070.3550530234. The cubic root of 122552761 is about 496.7154858448.

The spelling of 122552761 in words is "one hundred twenty-two million, five hundred fifty-two thousand, seven hundred sixty-one".