12732557 has 2 divisors, whose sum is σ = 12732558. Its totient is φ = 12732556.

The previous prime is 12732553. The next prime is 12732563. The reversal of 12732557 is 75523721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9156676 + 3575881 = 3026^2 + 1891^2 .

It is a cyclic number.

It is not a de Polignac number, because 12732557 - 2² = 12732553 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12732553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6366278 + 6366279.

It is an arithmetic number, because the mean of its divisors is an integer number (6366279).

Almost surely, 2^12732557 is an apocalyptic number.

It is an amenable number.

12732557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12732557 is an equidigital number, since it uses as much as digits as its factorization.

12732557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14700, while the sum is 32.

The square root of 12732557 is about 3568.2708697631. The cubic root of 12732557 is about 233.5098525953.

The spelling of 12732557 in words is "twelve million, seven hundred thirty-two thousand, five hundred fifty-seven".