122677739 has 2 divisors, whose sum is σ = 122677740. Its totient is φ = 122677738.

The previous prime is 122677703. The next prime is 122677769. The reversal of 122677739 is 937776221.

It is a strong prime.

It is an emirp because it is prime and its reverse (937776221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122677739 - 2¹² = 122673643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122677739.

It is not a weakly prime, because it can be changed into another prime (122677769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61338869 + 61338870.

It is an arithmetic number, because the mean of its divisors is an integer number (61338870).

Almost surely, 2^122677739 is an apocalyptic number.

122677739 is a deficient number, since it is larger than the sum of its proper divisors (1).

122677739 is an equidigital number, since it uses as much as digits as its factorization.

122677739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 44.

The square root of 122677739 is about 11075.9983297218. The cubic root of 122677739 is about 496.8842768675.

The spelling of 122677739 in words is "one hundred twenty-two million, six hundred seventy-seven thousand, seven hundred thirty-nine".