12231751 has 8 divisors (see below), whose sum is σ = 14090240. Its totient is φ = 10401048.

The previous prime is 12231733. The next prime is 12231757. The reversal of 12231751 is 15713221.

It is a happy number.

12231751 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12231751 - 2⁷ = 12231623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231757) 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, 5991 + ... + 7768.

It is an arithmetic number, because the mean of its divisors is an integer number (1761280).

Almost surely, 2^12231751 is an apocalyptic number.

12231751 is a deficient number, since it is larger than the sum of its proper divisors (1858489).

12231751 is a wasteful number, since it uses less digits than its factorization.

12231751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13893.

The product of its digits is 420, while the sum is 22.

The square root of 12231751 is about 3497.3920283548. The cubic root of 12231751 is about 230.4072871662.

Adding to 12231751 its reverse (15713221), we get a palindrome (27944972).

The spelling of 12231751 in words is "twelve million, two hundred thirty-one thousand, seven hundred fifty-one".