1138707841 has 4 divisors (see below), whose sum is σ = 1175440384. Its totient is φ = 1101975300.

The previous prime is 1138707827. The next prime is 1138707853. The reversal of 1138707841 is 1487078311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1138707841 - 2⁹ = 1138707329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1138707794 and 1138707803.

It is not an unprimeable number, because it can be changed into a prime (1138701841) 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, 18366225 + ... + 18366286.

It is an arithmetic number, because the mean of its divisors is an integer number (293860096).

Almost surely, 2^1138707841 is an apocalyptic number.

It is an amenable number.

1138707841 is a deficient number, since it is larger than the sum of its proper divisors (36732543).

1138707841 is an equidigital number, since it uses as much as digits as its factorization.

1138707841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36732542.

The product of its (nonzero) digits is 37632, while the sum is 40.

The square root of 1138707841 is about 33744.7453835408. The cubic root of 1138707841 is about 1044.2490857762.

The spelling of 1138707841 in words is "one billion, one hundred thirty-eight million, seven hundred seven thousand, eight hundred forty-one".