1226091 has 16 divisors (see below), whose sum is σ = 1792800. Its totient is φ = 741888.

The previous prime is 1226087. The next prime is 1226101. The reversal of 1226091 is 1906221.

It is not a de Polignac number, because 1226091 - 2² = 1226087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1065 + ... + 1893.

It is an arithmetic number, because the mean of its divisors is an integer number (112050).

2^1226091 is an apocalyptic number.

1226091 is a deficient number, since it is larger than the sum of its proper divisors (566709).

1226091 is a wasteful number, since it uses less digits than its factorization.

1226091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1226091 is about 1107.2899349312. The cubic root of 1226091 is about 107.0305034295.

The spelling of 1226091 in words is "one million, two hundred twenty-six thousand, ninety-one".