1000551143 has 2 divisors, whose sum is σ = 1000551144. Its totient is φ = 1000551142.

The previous prime is 1000551121. The next prime is 1000551169. The reversal of 1000551143 is 3411550001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000551143 - 2¹⁰ = 1000550119 is a prime.

It is a super-2 number, since 2×1000551143² = 2002205179517212898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000551113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500275571 + 500275572.

It is an arithmetic number, because the mean of its divisors is an integer number (500275572).

Almost surely, 2^1000551143 is an apocalyptic number.

1000551143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000551143 is an equidigital number, since it uses as much as digits as its factorization.

1000551143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1000551143 is about 31631.4897372855. The cubic root of 1000551143 is about 1000.1836805927.

The spelling of 1000551143 in words is "one billion, five hundred fifty-one thousand, one hundred forty-three".