1051143943 has 8 divisors (see below), whose sum is σ = 1062217728. Its totient is φ = 1040087064.

The previous prime is 1051143931. The next prime is 1051143971. The reversal of 1051143943 is 3493411501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1051143943 - 2⁵ = 1051143911 is a prime.

It is a super-2 number, since 2×1051143943² = 2209807177811174498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051143043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149730 + ... + 156592.

It is an arithmetic number, because the mean of its divisors is an integer number (132777216).

Almost surely, 2^1051143943 is an apocalyptic number.

1051143943 is a deficient number, since it is larger than the sum of its proper divisors (11073785).

1051143943 is a wasteful number, since it uses less digits than its factorization.

1051143943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8453.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1051143943 is about 32421.3501106909. The cubic root of 1051143943 is about 1016.7653338025.

The spelling of 1051143943 in words is "one billion, fifty-one million, one hundred forty-three thousand, nine hundred forty-three".