1042105591 has 2 divisors, whose sum is σ = 1042105592. Its totient is φ = 1042105590.

The previous prime is 1042105529. The next prime is 1042105607. The reversal of 1042105591 is 1955012401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1042105591 - 2¹⁷ = 1041974519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042105501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521052795 + 521052796.

It is an arithmetic number, because the mean of its divisors is an integer number (521052796).

Almost surely, 2^1042105591 is an apocalyptic number.

1042105591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042105591 is an equidigital number, since it uses as much as digits as its factorization.

1042105591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1042105591 is about 32281.6602887770. The cubic root of 1042105591 is about 1013.8426926798.

Adding to 1042105591 its reverse (1955012401), we get a palindrome (2997117992).

The spelling of 1042105591 in words is "one billion, forty-two million, one hundred five thousand, five hundred ninety-one".