1054439791 has 2 divisors, whose sum is σ = 1054439792. Its totient is φ = 1054439790.

The previous prime is 1054439753. The next prime is 1054439809. The reversal of 1054439791 is 1979344501.

It is a strong prime.

It is an emirp because it is prime and its reverse (1979344501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1054439791 - 2⁷ = 1054439663 is a prime.

It is a super-2 number, since 2×1054439791² = 2223686545688247362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1054439291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527219895 + 527219896.

It is an arithmetic number, because the mean of its divisors is an integer number (527219896).

Almost surely, 2^1054439791 is an apocalyptic number.

1054439791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054439791 is an equidigital number, since it uses as much as digits as its factorization.

1054439791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 1054439791 is about 32472.1386884203. The cubic root of 1054439791 is about 1017.8269098296.

The spelling of 1054439791 in words is "one billion, fifty-four million, four hundred thirty-nine thousand, seven hundred ninety-one".