12499231 has 8 divisors (see below), whose sum is σ = 12976128. Its totient is φ = 12027000.

The previous prime is 12499217. The next prime is 12499237. The reversal of 12499231 is 13299421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12499231 - 2⁹ = 12498719 is a prime.

It is a super-2 number, since 2×12499231² = 312461551182722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12499193 and 12499202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12499237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4866 + ... + 6976.

It is an arithmetic number, because the mean of its divisors is an integer number (1622016).

Almost surely, 2^12499231 is an apocalyptic number.

12499231 is a deficient number, since it is larger than the sum of its proper divisors (476897).

12499231 is a wasteful number, since it uses less digits than its factorization.

12499231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333.

The product of its digits is 3888, while the sum is 31.

The square root of 12499231 is about 3535.4251512371. The cubic root of 12499231 is about 232.0746824073.

It can be divided in two parts, 1249923 and 1, that added together give a square (1249924 = 1118²).

The spelling of 12499231 in words is "twelve million, four hundred ninety-nine thousand, two hundred thirty-one".