1227631 has 6 divisors (see below), whose sum is σ = 1273632. Its totient is φ = 1182060.

The previous prime is 1227619. The next prime is 1227637. The reversal of 1227631 is 1367221.

It is not a de Polignac number, because 1227631 - 2¹⁷ = 1096559 is a prime.

It is a super-2 number, since 2×1227631² = 3014155744322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6070 + ... + 6268.

It is an arithmetic number, because the mean of its divisors is an integer number (212272).

2^1227631 is an apocalyptic number.

1227631 is a deficient number, since it is larger than the sum of its proper divisors (46001).

1227631 is an frugal number, since it uses more digits than its factorization.

1227631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 230 counting only the distinct ones).

The product of its digits is 504, while the sum is 22.

The square root of 1227631 is about 1107.9851082032. The cubic root of 1227631 is about 107.0752956498.

The spelling of 1227631 in words is "one million, two hundred twenty-seven thousand, six hundred thirty-one".