1231364 has 12 divisors (see below), whose sum is σ = 2184924. Its totient is φ = 607104.

The previous prime is 1231357. The next prime is 1231379. The reversal of 1231364 is 4631321.

It can be written as a sum of positive squares in 2 ways, for example, as 917764 + 313600 = 958^2 + 560^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1817 + ... + 2400.

It is an arithmetic number, because the mean of its divisors is an integer number (182077).

2^1231364 is an apocalyptic number.

It is an amenable number.

1231364 is a deficient number, since it is larger than the sum of its proper divisors (953560).

1231364 is a wasteful number, since it uses less digits than its factorization.

1231364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294 (or 4292 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1231364 is about 1109.6684189432. The cubic root of 1231364 is about 107.1837179177.

Adding to 1231364 its reverse (4631321), we get a palindrome (5862685).

The spelling of 1231364 in words is "one million, two hundred thirty-one thousand, three hundred sixty-four".