122378353 has 2 divisors, whose sum is σ = 122378354. Its totient is φ = 122378352.

The previous prime is 122378341. The next prime is 122378407. The reversal of 122378353 is 353873221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122257249 + 121104 = 11057^2 + 348^2 .

It is a cyclic number.

It is not a de Polignac number, because 122378353 - 2²¹ = 120281201 is a prime.

It is a super-2 number, since 2×122378353² = 29952922565985218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122378303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61189176 + 61189177.

It is an arithmetic number, because the mean of its divisors is an integer number (61189177).

Almost surely, 2^122378353 is an apocalyptic number.

It is an amenable number.

122378353 is a deficient number, since it is larger than the sum of its proper divisors (1).

122378353 is an equidigital number, since it uses as much as digits as its factorization.

122378353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

The square root of 122378353 is about 11062.4749943220. The cubic root of 122378353 is about 496.4797444331.

The spelling of 122378353 in words is "one hundred twenty-two million, three hundred seventy-eight thousand, three hundred fifty-three".