12743550 has 36 divisors (see below), whose sum is σ = 34238880. Its totient is φ = 3398160.

The previous prime is 12743543. The next prime is 12743551. The reversal of 12743550 is 5534721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12743551) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13710 + ... + 14609.

It is an arithmetic number, because the mean of its divisors is an integer number (951080).

Almost surely, 2^12743550 is an apocalyptic number.

12743550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12743550 is an abundant number, since it is smaller than the sum of its proper divisors (21495330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12743550 is a wasteful number, since it uses less digits than its factorization.

12743550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28337 (or 28329 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 12743550 is about 3569.8109193625. The cubic root of 12743550 is about 233.5770356288.

The spelling of 12743550 in words is "twelve million, seven hundred forty-three thousand, five hundred fifty".