1226491 has 8 divisors (see below), whose sum is σ = 1419264. Its totient is φ = 1038120.

The previous prime is 1226483. The next prime is 1226501. The reversal of 1226491 is 1946221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1226491 - 2³ = 1226483 is a prime.

1226491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1226461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475 + ... + 1636.

It is an arithmetic number, because the mean of its divisors is an integer number (177408).

2^1226491 is an apocalyptic number.

1226491 is a deficient number, since it is larger than the sum of its proper divisors (192773).

1226491 is an equidigital number, since it uses as much as digits as its factorization.

1226491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201.

The product of its digits is 864, while the sum is 25.

The square root of 1226491 is about 1107.4705413689. The cubic root of 1226491 is about 107.0421413766.

The spelling of 1226491 in words is "one million, two hundred twenty-six thousand, four hundred ninety-one".