3100243 has 4 divisors (see below), whose sum is σ = 3121200. Its totient is φ = 3079288.

The previous prime is 3100231. The next prime is 3100259. The reversal of 3100243 is 3420013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3420013 = 31 ⋅110323.

It is a cyclic number.

It is not a de Polignac number, because 3100243 - 2⁹ = 3099731 is a prime.

It is a super-2 number, since 2×3100243² = 19223013318098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3100043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10255 + ... + 10552.

It is an arithmetic number, because the mean of its divisors is an integer number (780300).

Almost surely, 2^3100243 is an apocalyptic number.

3100243 is a deficient number, since it is larger than the sum of its proper divisors (20957).

3100243 is a wasteful number, since it uses less digits than its factorization.

3100243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20956.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 3100243 is about 1760.7506921765. The cubic root of 3100243 is about 145.8137833566.

Adding to 3100243 its reverse (3420013), we get a palindrome (6520256).

The spelling of 3100243 in words is "three million, one hundred thousand, two hundred forty-three".