122777383 has 4 divisors (see below), whose sum is σ = 129999600. Its totient is φ = 115555168.

The previous prime is 122777357. The next prime is 122777399. The reversal of 122777383 is 383777221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122777383 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122777483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3611083 + ... + 3611116.

It is an arithmetic number, because the mean of its divisors is an integer number (32499900).

Almost surely, 2^122777383 is an apocalyptic number.

122777383 is a deficient number, since it is larger than the sum of its proper divisors (7222217).

122777383 is an equidigital number, since it uses as much as digits as its factorization.

122777383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7222216.

The product of its digits is 98784, while the sum is 40.

The square root of 122777383 is about 11080.4956116593. The cubic root of 122777383 is about 497.0187705369.

The spelling of 122777383 in words is "one hundred twenty-two million, seven hundred seventy-seven thousand, three hundred eighty-three".