1631214 has 24 divisors (see below), whose sum is σ = 3806712. Its totient is φ = 501840.

The previous prime is 1631209. The next prime is 1631243. The reversal of 1631214 is 4121361.

It is a happy number.

It is a super-2 number, since 2×1631214² = 5321718227592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3252 + ... + 3719.

It is an arithmetic number, because the mean of its divisors is an integer number (158613).

2^1631214 is an apocalyptic number.

1631214 is an abundant number, since it is smaller than the sum of its proper divisors (2175498).

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

1631214 is a wasteful number, since it uses less digits than its factorization.

1631214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6992 (or 6989 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1631214 is about 1277.1898840815. The cubic root of 1631214 is about 117.7164021687.

Adding to 1631214 its reverse (4121361), we get a palindrome (5752575).

The spelling of 1631214 in words is "one million, six hundred thirty-one thousand, two hundred fourteen".