1206256343 has 4 divisors (see below), whose sum is σ = 1208369448. Its totient is φ = 1204143240.

The previous prime is 1206256327. The next prime is 1206256379. The reversal of 1206256343 is 3436526021.

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 1206256343 - 2⁴ = 1206256327 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 (1206256243) 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, 1055696 + ... + 1056837.

It is an arithmetic number, because the mean of its divisors is an integer number (302092362).

Almost surely, 2^1206256343 is an apocalyptic number.

1206256343 is a deficient number, since it is larger than the sum of its proper divisors (2113105).

1206256343 is an equidigital number, since it uses as much as digits as its factorization.

1206256343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113104.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 1206256343 is about 34731.2012893306. The cubic root of 1206256343 is about 1064.5021346967.

The spelling of 1206256343 in words is "one billion, two hundred six million, two hundred fifty-six thousand, three hundred forty-three".