1208623243 has 4 divisors (see below), whose sum is σ = 1208845008. Its totient is φ = 1208401480.

The previous prime is 1208623217. The next prime is 1208623271. The reversal of 1208623243 is 3423268021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3423268021 = 10177 ⋅336373.

It is a cyclic number.

It is not a de Polignac number, because 1208623243 - 2⁹ = 1208622731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1208623043) 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, 102496 + ... + 113677.

It is an arithmetic number, because the mean of its divisors is an integer number (302211252).

Almost surely, 2^1208623243 is an apocalyptic number.

1208623243 is a deficient number, since it is larger than the sum of its proper divisors (221765).

1208623243 is an equidigital number, since it uses as much as digits as its factorization.

1208623243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221764.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 1208623243 is about 34765.2591389738. The cubic root of 1208623243 is about 1065.1979303999.

The spelling of 1208623243 in words is "one billion, two hundred eight million, six hundred twenty-three thousand, two hundred forty-three".