12251723 has 4 divisors (see below), whose sum is σ = 13365528. Its totient is φ = 11137920.

The previous prime is 12251719. The next prime is 12251731. The reversal of 12251723 is 32715221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12251723 - 2² = 12251719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12251623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556886 + ... + 556907.

It is an arithmetic number, because the mean of its divisors is an integer number (3341382).

Almost surely, 2^12251723 is an apocalyptic number.

12251723 is a deficient number, since it is larger than the sum of its proper divisors (1113805).

12251723 is a wasteful number, since it uses less digits than its factorization.

12251723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113804.

The product of its digits is 840, while the sum is 23.

The square root of 12251723 is about 3500.2461342026. The cubic root of 12251723 is about 230.5326219625.

Adding to 12251723 its reverse (32715221), we get a palindrome (44966944).

The spelling of 12251723 in words is "twelve million, two hundred fifty-one thousand, seven hundred twenty-three".