122453819 has 2 divisors, whose sum is σ = 122453820. Its totient is φ = 122453818.

The previous prime is 122453791. The next prime is 122453827. The reversal of 122453819 is 918354221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122453819 is a prime.

It is a super-2 number, since 2×122453819² = 29989875575369522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122453519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61226909 + 61226910.

It is an arithmetic number, because the mean of its divisors is an integer number (61226910).

Almost surely, 2^122453819 is an apocalyptic number.

122453819 is a deficient number, since it is larger than the sum of its proper divisors (1).

122453819 is an equidigital number, since it uses as much as digits as its factorization.

122453819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 35.

The square root of 122453819 is about 11065.8853690069. The cubic root of 122453819 is about 496.5817767522.

The spelling of 122453819 in words is "one hundred twenty-two million, four hundred fifty-three thousand, eight hundred nineteen".