122403397 has 2 divisors, whose sum is σ = 122403398. Its totient is φ = 122403396.

The previous prime is 122403373. The next prime is 122403431. The reversal of 122403397 is 793304221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108868356 + 13535041 = 10434^2 + 3679^2 .

It is an emirp because it is prime and its reverse (793304221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122403397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122403317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61201698 + 61201699.

It is an arithmetic number, because the mean of its divisors is an integer number (61201699).

Almost surely, 2^122403397 is an apocalyptic number.

It is an amenable number.

122403397 is a deficient number, since it is larger than the sum of its proper divisors (1).

122403397 is an equidigital number, since it uses as much as digits as its factorization.

122403397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 122403397 is about 11063.6068711790. The cubic root of 122403397 is about 496.5136093292.

The spelling of 122403397 in words is "one hundred twenty-two million, four hundred three thousand, three hundred ninety-seven".