1373707243 has 4 divisors (see below), whose sum is σ = 1373997240. Its totient is φ = 1373417248.

The previous prime is 1373707217. The next prime is 1373707267. The reversal of 1373707243 is 3427073731.

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 1373707243 - 2²⁵ = 1340152811 is a prime.

It is a super-2 number, since 2×1373707243² = 3774143178941322098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1373707043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137773 + ... + 147406.

It is an arithmetic number, because the mean of its divisors is an integer number (343499310).

Almost surely, 2^1373707243 is an apocalyptic number.

1373707243 is a deficient number, since it is larger than the sum of its proper divisors (289997).

1373707243 is an equidigital number, since it uses as much as digits as its factorization.

1373707243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289996.

The product of its (nonzero) digits is 74088, while the sum is 37.

The square root of 1373707243 is about 37063.5568044946. The cubic root of 1373707243 is about 1111.6414431836.

The spelling of 1373707243 in words is "one billion, three hundred seventy-three million, seven hundred seven thousand, two hundred forty-three".