13127432 has 8 divisors (see below), whose sum is σ = 24613950. Its totient is φ = 6563712.

The previous prime is 13127431. The next prime is 13127437. The reversal of 13127432 is 23472131.

It can be written as a sum of positive squares in only one way, i.e., 12292036 + 835396 = 3506^2 + 914^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13127398 and 13127407.

It is not an unprimeable number, because it can be changed into a prime (13127431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820457 + ... + 820472.

Almost surely, 2^13127432 is an apocalyptic number.

It is an amenable number.

13127432 is a deficient number, since it is larger than the sum of its proper divisors (11486518).

13127432 is a wasteful number, since it uses less digits than its factorization.

13127432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640935 (or 1640931 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 13127432 is about 3623.1798188884. The cubic root of 13127432 is about 235.8992675532.

Adding to 13127432 its reverse (23472131), we get a palindrome (36599563).

It can be divided in two parts, 1312743 and 2, that multiplied together give a triangular number (2625486 = T₂₂₉₁).

The spelling of 13127432 in words is "thirteen million, one hundred twenty-seven thousand, four hundred thirty-two".