1372115243 has 2 divisors, whose sum is σ = 1372115244. Its totient is φ = 1372115242.

The previous prime is 1372115233. The next prime is 1372115279. The reversal of 1372115243 is 3425112731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1372115243 - 2⁸ = 1372114987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1372115233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686057621 + 686057622.

It is an arithmetic number, because the mean of its divisors is an integer number (686057622).

Almost surely, 2^1372115243 is an apocalyptic number.

1372115243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372115243 is an equidigital number, since it uses as much as digits as its factorization.

1372115243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 1372115243 is about 37042.0739565160. The cubic root of 1372115243 is about 1111.2118472175.

Adding to 1372115243 its reverse (3425112731), we get a palindrome (4797227974).

The spelling of 1372115243 in words is "one billion, three hundred seventy-two million, one hundred fifteen thousand, two hundred forty-three".