122724453 has 4 divisors (see below), whose sum is σ = 163632608. Its totient is φ = 81816300.

The previous prime is 122724421. The next prime is 122724457. The reversal of 122724453 is 354427221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122724453 - 2⁵ = 122724421 is a prime.

It is a super-2 number, since 2×122724453² = 30122582728298418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122724453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122724457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20454073 + ... + 20454078.

It is an arithmetic number, because the mean of its divisors is an integer number (40908152).

Almost surely, 2^122724453 is an apocalyptic number.

It is an amenable number.

122724453 is a deficient number, since it is larger than the sum of its proper divisors (40908155).

122724453 is an equidigital number, since it uses as much as digits as its factorization.

122724453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40908154.

The product of its digits is 13440, while the sum is 30.

The square root of 122724453 is about 11078.1069231164. The cubic root of 122724453 is about 496.9473377693.

The spelling of 122724453 in words is "one hundred twenty-two million, seven hundred twenty-four thousand, four hundred fifty-three".