122319551 has 2 divisors, whose sum is σ = 122319552. Its totient is φ = 122319550.

The previous prime is 122319541. The next prime is 122319577. The reversal of 122319551 is 155913221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122319551 - 2²² = 118125247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122319541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61159775 + 61159776.

It is an arithmetic number, because the mean of its divisors is an integer number (61159776).

Almost surely, 2^122319551 is an apocalyptic number.

122319551 is a deficient number, since it is larger than the sum of its proper divisors (1).

122319551 is an equidigital number, since it uses as much as digits as its factorization.

122319551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 29.

The square root of 122319551 is about 11059.8169514690. The cubic root of 122319551 is about 496.4002132679.

The spelling of 122319551 in words is "one hundred twenty-two million, three hundred nineteen thousand, five hundred fifty-one".