1655226 has 12 divisors (see below), whose sum is σ = 3586362. Its totient is φ = 551736.

The previous prime is 1655209. The next prime is 1655231. The reversal of 1655226 is 6225561.

1655226 is a `hidden beast` number, since 1 + 655 + 2 + 2 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1404225 + 251001 = 1185^2 + 501^2 .

It is a super-2 number, since 2×1655226² = 5479546222152, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1655226.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45961 + ... + 45996.

2^1655226 is an apocalyptic number.

1655226 is an abundant number, since it is smaller than the sum of its proper divisors (1931136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1655226 is a wasteful number, since it uses less digits than its factorization.

1655226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91965 (or 91962 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1655226 is about 1286.5558674228. Note that the first 3 decimals coincide. The cubic root of 1655226 is about 118.2911988235.

It can be divided in two parts, 1655 and 226, that added together give a palindrome (1881).

The spelling of 1655226 in words is "one million, six hundred fifty-five thousand, two hundred twenty-six".