1226899 has 2 divisors, whose sum is σ = 1226900. Its totient is φ = 1226898.

The previous prime is 1226891. The next prime is 1226959. The reversal of 1226899 is 9986221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226899 - 2³ = 1226891 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1226891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613449 + 613450.

It is an arithmetic number, because the mean of its divisors is an integer number (613450).

2^1226899 is an apocalyptic number.

1226899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226899 is an equidigital number, since it uses as much as digits as its factorization.

1226899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The square root of 1226899 is about 1107.6547295976. The cubic root of 1226899 is about 107.0540094762.

It can be divided in two parts, 122 and 6899, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 1226899 in words is "one million, two hundred twenty-six thousand, eight hundred ninety-nine".