1041206891 has 2 divisors, whose sum is σ = 1041206892. Its totient is φ = 1041206890.

The previous prime is 1041206869. The next prime is 1041206909. The reversal of 1041206891 is 1986021401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1041206891 - 2¹⁸ = 1040944747 is a prime.

It is a super-2 number, since 2×1041206891² = 2168223579731771762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1041206801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520603445 + 520603446.

It is an arithmetic number, because the mean of its divisors is an integer number (520603446).

Almost surely, 2^1041206891 is an apocalyptic number.

1041206891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1041206891 is an equidigital number, since it uses as much as digits as its factorization.

1041206891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 1041206891 is about 32267.7376182465. The cubic root of 1041206891 is about 1013.5511667281.

The spelling of 1041206891 in words is "one billion, forty-one million, two hundred six thousand, eight hundred ninety-one".