12737531 has 2 divisors, whose sum is σ = 12737532. Its totient is φ = 12737530.

The previous prime is 12737521. The next prime is 12737533. The reversal of 12737531 is 13573721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12737531 - 2¹⁴ = 12721147 is a prime.

It is a super-2 number, since 2×12737531² = 324489391951922, which contains 22 as substring.

Together with 12737533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12737494 and 12737503.

It is not a weakly prime, because it can be changed into another prime (12737533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6368765 + 6368766.

It is an arithmetic number, because the mean of its divisors is an integer number (6368766).

Almost surely, 2^12737531 is an apocalyptic number.

12737531 is a deficient number, since it is larger than the sum of its proper divisors (1).

12737531 is an equidigital number, since it uses as much as digits as its factorization.

12737531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4410, while the sum is 29.

The square root of 12737531 is about 3568.9677779436. The cubic root of 12737531 is about 233.5402556740.

The spelling of 12737531 in words is "twelve million, seven hundred thirty-seven thousand, five hundred thirty-one".