3126243 has 4 divisors (see below), whose sum is σ = 4168328. Its totient is φ = 2084160.

The previous prime is 3126239. The next prime is 3126269. The reversal of 3126243 is 3426213.

It is a happy number.

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

It is not a de Polignac number, because 3126243 - 2² = 3126239 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3126223) 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, 521038 + ... + 521043.

It is an arithmetic number, because the mean of its divisors is an integer number (1042082).

Almost surely, 2^3126243 is an apocalyptic number.

3126243 is a deficient number, since it is larger than the sum of its proper divisors (1042085).

3126243 is a wasteful number, since it uses less digits than its factorization.

3126243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042084.

The product of its digits is 864, while the sum is 21.

The square root of 3126243 is about 1768.1184915045. The cubic root of 3126243 is about 146.2202686294.

It can be divided in two parts, 312 and 6243, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 3126243 in words is "three million, one hundred twenty-six thousand, two hundred forty-three".