1049361791 has 4 divisors (see below), whose sum is σ = 1049506800. Its totient is φ = 1049216784.

The previous prime is 1049361713. The next prime is 1049361793. The reversal of 1049361791 is 1971639401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1971639401 = 31 ⋅63601271.

It is a cyclic number.

It is not a de Polignac number, because 1049361791 - 2¹⁸ = 1049099647 is a prime.

It is a super-2 number, since 2×1049361791² = 2202320336821455362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049361793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61046 + ... + 76323.

It is an arithmetic number, because the mean of its divisors is an integer number (262376700).

Almost surely, 2^1049361791 is an apocalyptic number.

1049361791 is a deficient number, since it is larger than the sum of its proper divisors (145009).

1049361791 is an equidigital number, since it uses as much as digits as its factorization.

1049361791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145008.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 1049361791 is about 32393.8542165022. The cubic root of 1049361791 is about 1016.1903870460.

The spelling of 1049361791 in words is "one billion, forty-nine million, three hundred sixty-one thousand, seven hundred ninety-one".