1791138241 has 8 divisors (see below), whose sum is σ = 1910978784. Its totient is φ = 1672906560.

The previous prime is 1791138197. The next prime is 1791138247. The reversal of 1791138241 is 1428311971.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1791138241 - 2⁹ = 1791137729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1791138241.

It is not an unprimeable number, because it can be changed into a prime (1791138247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399915 + ... + 404368.

It is an arithmetic number, because the mean of its divisors is an integer number (238872348).

Almost surely, 2^1791138241 is an apocalyptic number.

It is an amenable number.

1791138241 is a deficient number, since it is larger than the sum of its proper divisors (119840543).

1791138241 is a wasteful number, since it uses less digits than its factorization.

1791138241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804431.

The product of its digits is 12096, while the sum is 37.

The square root of 1791138241 is about 42321.8411815932. The cubic root of 1791138241 is about 1214.4408545646.

The spelling of 1791138241 in words is "one billion, seven hundred ninety-one million, one hundred thirty-eight thousand, two hundred forty-one".