12285731 has 2 divisors, whose sum is σ = 12285732. Its totient is φ = 12285730.

The previous prime is 12285709. The next prime is 12285797. The reversal of 12285731 is 13758221.

12285731 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12285731 - 2⁶ = 12285667 is a prime.

It is a super-2 number, since 2×12285731² = 301878372408722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12285694 and 12285703.

It is not a weakly prime, because it can be changed into another prime (12285631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6142865 + 6142866.

It is an arithmetic number, because the mean of its divisors is an integer number (6142866).

Almost surely, 2^12285731 is an apocalyptic number.

12285731 is a deficient number, since it is larger than the sum of its proper divisors (1).

12285731 is an equidigital number, since it uses as much as digits as its factorization.

12285731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 29.

The square root of 12285731 is about 3505.1007118198. The cubic root of 12285731 is about 230.7457269709.

The spelling of 12285731 in words is "twelve million, two hundred eighty-five thousand, seven hundred thirty-one".