12551743 has 4 divisors (see below), whose sum is σ = 12843688. Its totient is φ = 12259800.

The previous prime is 12551731. The next prime is 12551753. The reversal of 12551743 is 34715521.

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 12551743 - 2⁵ = 12551711 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 (12551753) 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, 145908 + ... + 145993.

It is an arithmetic number, because the mean of its divisors is an integer number (3210922).

Almost surely, 2^12551743 is an apocalyptic number.

12551743 is a deficient number, since it is larger than the sum of its proper divisors (291945).

12551743 is an equidigital number, since it uses as much as digits as its factorization.

12551743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291944.

The product of its digits is 4200, while the sum is 28.

The square root of 12551743 is about 3542.8439141458. The cubic root of 12551743 is about 232.3992271495.

The spelling of 12551743 in words is "twelve million, five hundred fifty-one thousand, seven hundred forty-three".