1226466413 has 4 divisors (see below), whose sum is σ = 1228622460. Its totient is φ = 1224310368.

The previous prime is 1226466403. The next prime is 1226466433. The reversal of 1226466413 is 3146646221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3146646221 = 19 ⋅165612959.

It can be written as a sum of positive squares in 2 ways, for example, as 71690089 + 1154776324 = 8467^2 + 33982^2 .

It is a cyclic number.

It is not a de Polignac number, because 1226466413 - 2¹⁰ = 1226465389 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 (1226466403) 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, 1077170 + ... + 1078307.

It is an arithmetic number, because the mean of its divisors is an integer number (307155615).

Almost surely, 2^1226466413 is an apocalyptic number.

It is an amenable number.

1226466413 is a deficient number, since it is larger than the sum of its proper divisors (2156047).

1226466413 is an equidigital number, since it uses as much as digits as its factorization.

1226466413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156046.

The product of its digits is 41472, while the sum is 35.

The square root of 1226466413 is about 35020.9424916007. The cubic root of 1226466413 is about 1070.4142609410.

The spelling of 1226466413 in words is "one billion, two hundred twenty-six million, four hundred sixty-six thousand, four hundred thirteen".