1226660453 has 4 divisors (see below), whose sum is σ = 1238805708. Its totient is φ = 1214515200.

The previous prime is 1226660447. The next prime is 1226660467. The reversal of 1226660453 is 3540666221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 804686689 + 421973764 = 28367^2 + 20542^2 .

It is a cyclic number.

It is not a de Polignac number, because 1226660453 - 2⁴ = 1226660437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226660423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6072476 + ... + 6072677.

It is an arithmetic number, because the mean of its divisors is an integer number (309701427).

Almost surely, 2^1226660453 is an apocalyptic number.

It is an amenable number.

1226660453 is a deficient number, since it is larger than the sum of its proper divisors (12145255).

1226660453 is a wasteful number, since it uses less digits than its factorization.

1226660453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12145254.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 1226660453 is about 35023.7127243815. The cubic root of 1226660453 is about 1070.4707082621.

The spelling of 1226660453 in words is "one billion, two hundred twenty-six million, six hundred sixty thousand, four hundred fifty-three".