1226807133 has 4 divisors (see below), whose sum is σ = 1635742848. Its totient is φ = 817871420.

The previous prime is 1226807129. The next prime is 1226807137. The reversal of 1226807133 is 3317086221.

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 an interprime number because it is at equal distance from previous prime (1226807129) and next prime (1226807137).

It is a cyclic number.

It is not a de Polignac number, because 1226807133 - 2² = 1226807129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1226807094 and 1226807103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226807137) 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, 204467853 + ... + 204467858.

It is an arithmetic number, because the mean of its divisors is an integer number (408935712).

Almost surely, 2^1226807133 is an apocalyptic number.

It is an amenable number.

1226807133 is a deficient number, since it is larger than the sum of its proper divisors (408935715).

1226807133 is an equidigital number, since it uses as much as digits as its factorization.

1226807133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408935714.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1226807133 is about 35025.8066716528. The cubic root of 1226807133 is about 1070.5133743439.

The spelling of 1226807133 in words is "one billion, two hundred twenty-six million, eight hundred seven thousand, one hundred thirty-three".