122453791 has 2 divisors, whose sum is σ = 122453792. Its totient is φ = 122453790.

The previous prime is 122453759. The next prime is 122453819. The reversal of 122453791 is 197354221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (197354221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122453791 - 2⁵ = 122453759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122453731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61226895 + 61226896.

It is an arithmetic number, because the mean of its divisors is an integer number (61226896).

Almost surely, 2^122453791 is an apocalyptic number.

122453791 is a deficient number, since it is larger than the sum of its proper divisors (1).

122453791 is an equidigital number, since it uses as much as digits as its factorization.

122453791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 122453791 is about 11065.8841038572. The cubic root of 122453791 is about 496.5817389031.

The spelling of 122453791 in words is "one hundred twenty-two million, four hundred fifty-three thousand, seven hundred ninety-one".