1041813391 has 4 divisors (see below), whose sum is σ = 1041900112. Its totient is φ = 1041726672.

The previous prime is 1041813341. The next prime is 1041813413. The reversal of 1041813391 is 1933181401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1041813391 - 2¹³ = 1041805199 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1041813341) 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, 21750 + ... + 50563.

It is an arithmetic number, because the mean of its divisors is an integer number (260475028).

Almost surely, 2^1041813391 is an apocalyptic number.

1041813391 is a deficient number, since it is larger than the sum of its proper divisors (86721).

1041813391 is an equidigital number, since it uses as much as digits as its factorization.

1041813391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86720.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1041813391 is about 32277.1341819561. The cubic root of 1041813391 is about 1013.7479254028.

Adding to 1041813391 its reverse (1933181401), we get a palindrome (2974994792).

The spelling of 1041813391 in words is "one billion, forty-one million, eight hundred thirteen thousand, three hundred ninety-one".