1231432 has 8 divisors (see below), whose sum is σ = 2308950. Its totient is φ = 615712.

The previous prime is 1231423. The next prime is 1231453. The reversal of 1231432 is 2341321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1196836 + 34596 = 1094^2 + 186^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76957 + ... + 76972.

2^1231432 is an apocalyptic number.

It is an amenable number.

1231432 is a deficient number, since it is larger than the sum of its proper divisors (1077518).

1231432 is a wasteful number, since it uses less digits than its factorization.

1231432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153935 (or 153931 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 1231432 is about 1109.6990583036. The cubic root of 1231432 is about 107.1856908947.

Adding to 1231432 its reverse (2341321), we get a palindrome (3572753).

The spelling of 1231432 in words is "one million, two hundred thirty-one thousand, four hundred thirty-two".