1041406643 has 2 divisors, whose sum is σ = 1041406644. Its totient is φ = 1041406642.

The previous prime is 1041406633. The next prime is 1041406649. The reversal of 1041406643 is 3466041401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1041406643 - 2¹⁸ = 1041144499 is a prime.

It is not a weakly prime, because it can be changed into another prime (1041406649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520703321 + 520703322.

It is an arithmetic number, because the mean of its divisors is an integer number (520703322).

Almost surely, 2^1041406643 is an apocalyptic number.

1041406643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1041406643 is an equidigital number, since it uses as much as digits as its factorization.

1041406643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1041406643 is about 32270.8326976544. The cubic root of 1041406643 is about 1013.6159780315.

The spelling of 1041406643 in words is "one billion, forty-one million, four hundred six thousand, six hundred forty-three".