1137944845 has 4 divisors (see below), whose sum is σ = 1365533820. Its totient is φ = 910355872.

The previous prime is 1137944837. The next prime is 1137944923. The reversal of 1137944845 is 5484497311.

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 758396521 + 379548324 = 27539^2 + 19482^2 .

It is a cyclic number.

It is not a de Polignac number, because 1137944845 - 2³ = 1137944837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1137944795 and 1137944804.

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, 113794480 + ... + 113794489.

It is an arithmetic number, because the mean of its divisors is an integer number (341383455).

Almost surely, 2^1137944845 is an apocalyptic number.

It is an amenable number.

1137944845 is a deficient number, since it is larger than the sum of its proper divisors (227588975).

1137944845 is an equidigital number, since it uses as much as digits as its factorization.

1137944845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227588974.

The product of its digits is 483840, while the sum is 46.

The square root of 1137944845 is about 33733.4380844882. The cubic root of 1137944845 is about 1044.0157991595.

The spelling of 1137944845 in words is "one billion, one hundred thirty-seven million, nine hundred forty-four thousand, eight hundred forty-five".