1226005 has 8 divisors (see below), whose sum is σ = 1605024. Its totient is φ = 891600.

The previous prime is 1225999. The next prime is 1226011. The reversal of 1226005 is 5006221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1225999) and next prime (1226011).

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

It is not a de Polignac number, because 1226005 - 2³ = 1225997 is a prime.

It is a Duffinian number.

1226005 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1226005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11091 + ... + 11200.

It is an arithmetic number, because the mean of its divisors is an integer number (200628).

2^1226005 is an apocalyptic number.

It is an amenable number.

1226005 is a deficient number, since it is larger than the sum of its proper divisors (379019).

1226005 is a wasteful number, since it uses less digits than its factorization.

1226005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22307.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1226005 is about 1107.2511006994. The cubic root of 1226005 is about 107.0280009403.

The spelling of 1226005 in words is "one million, two hundred twenty-six thousand, five".