1971226 has 4 divisors (see below), whose sum is σ = 2956842. Its totient is φ = 985612.

The previous prime is 1971209. The next prime is 1971241. The reversal of 1971226 is 6221791.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1550025 + 421201 = 1245^2 + 649^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1971194 and 1971203.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492805 + ... + 492808.

2^1971226 is an apocalyptic number.

1971226 is a deficient number, since it is larger than the sum of its proper divisors (985616).

1971226 is an equidigital number, since it uses as much as digits as its factorization.

1971226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985615.

The product of its digits is 1512, while the sum is 28.

The square root of 1971226 is about 1404.0035612490. The cubic root of 1971226 is about 125.3849678476.

It can be divided in two parts, 1971 and 226, that added together give a cube (2197 = 13³).

The spelling of 1971226 in words is "one million, nine hundred seventy-one thousand, two hundred twenty-six".