1226200453 has 4 divisors (see below), whose sum is σ = 1226914668. Its totient is φ = 1225486240.

The previous prime is 1226200447. The next prime is 1226200457. The reversal of 1226200453 is 3540026221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3540026221 = 14831 ⋅238691.

It can be written as a sum of positive squares in 2 ways, for example, as 830707684 + 395492769 = 28822^2 + 19887^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1226200453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226200457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354526 + ... + 357967.

It is an arithmetic number, because the mean of its divisors is an integer number (306728667).

Almost surely, 2^1226200453 is an apocalyptic number.

It is an amenable number.

1226200453 is a deficient number, since it is larger than the sum of its proper divisors (714215).

1226200453 is an equidigital number, since it uses as much as digits as its factorization.

1226200453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714214.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1226200453 is about 35017.1451292078. The cubic root of 1226200453 is about 1070.3368820160.

Adding to 1226200453 its reverse (3540026221), we get a palindrome (4766226674).

The spelling of 1226200453 in words is "one billion, two hundred twenty-six million, two hundred thousand, four hundred fifty-three".