122672819 has 2 divisors, whose sum is σ = 122672820. Its totient is φ = 122672818.

The previous prime is 122672791. The next prime is 122672821. The reversal of 122672819 is 918276221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122672819 is a prime.

It is a super-2 number, since 2×122672819² = 30097241042813522, which contains 22 as substring.

Together with 122672821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122672839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61336409 + 61336410.

It is an arithmetic number, because the mean of its divisors is an integer number (61336410).

Almost surely, 2^122672819 is an apocalyptic number.

122672819 is a deficient number, since it is larger than the sum of its proper divisors (1).

122672819 is an equidigital number, since it uses as much as digits as its factorization.

122672819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 122672819 is about 11075.7762256196. The cubic root of 122672819 is about 496.8776342516.

The spelling of 122672819 in words is "one hundred twenty-two million, six hundred seventy-two thousand, eight hundred nineteen".