1051663 has 2 divisors, whose sum is σ = 1051664. Its totient is φ = 1051662.

The previous prime is 1051649. The next prime is 1051697. The reversal of 1051663 is 3661501.

It is a weak prime.

It is an emirp because it is prime and its reverse (3661501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1051663 - 2⁹ = 1051151 is a prime.

It is a super-2 number, since 2×1051663² = 2211990131138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525831 + 525832.

It is an arithmetic number, because the mean of its divisors is an integer number (525832).

2^1051663 is an apocalyptic number.

1051663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051663 is an equidigital number, since it uses as much as digits as its factorization.

1051663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1051663 is about 1025.5062164609. The cubic root of 1051663 is about 101.6932666520.

The spelling of 1051663 in words is "one million, fifty-one thousand, six hundred sixty-three".