12449143 has 8 divisors (see below), whose sum is σ = 14280480. Its totient is φ = 10631040.

The previous prime is 12449119. The next prime is 12449147. The reversal of 12449143 is 34194421.

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

It is not a de Polignac number, because 12449143 - 2⁵ = 12449111 is a prime.

It is a super-2 number, since 2×12449143² = 309962322868898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12449147) 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, 1198 + ... + 5131.

It is an arithmetic number, because the mean of its divisors is an integer number (1785060).

Almost surely, 2^12449143 is an apocalyptic number.

12449143 is a deficient number, since it is larger than the sum of its proper divisors (1831337).

12449143 is an equidigital number, since it uses as much as digits as its factorization.

12449143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6617.

The product of its digits is 3456, while the sum is 28.

The square root of 12449143 is about 3528.3343095574. The cubic root of 12449143 is about 231.7642708185.

The spelling of 12449143 in words is "twelve million, four hundred forty-nine thousand, one hundred forty-three".