1137320043845 has 4 divisors (see below), whose sum is σ = 1364784052620. Its totient is φ = 909856035072.

The previous prime is 1137320043823. The next prime is 1137320043859. The reversal of 1137320043845 is 5483400237311.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 803760661729 + 333559382116 = 896527^2 + 577546^2 .

It is a cyclic number.

It is not a de Polignac number, because 1137320043845 - 2²⁰ = 1137318995269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113732004380 + ... + 113732004389.

It is an arithmetic number, because the mean of its divisors is an integer number (341196013155).

Almost surely, 2^{1137320043845} is an apocalyptic number.

It is an amenable number.

1137320043845 is a deficient number, since it is larger than the sum of its proper divisors (227464008775).

1137320043845 is an equidigital number, since it uses as much as digits as its factorization.

1137320043845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227464008774.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 1137320043845 in words is "one trillion, one hundred thirty-seven billion, three hundred twenty million, forty-three thousand, eight hundred forty-five".