143443816 has 8 divisors (see below), whose sum is σ = 268957170. Its totient is φ = 71721904.

The previous prime is 143443799. The next prime is 143443849. The reversal of 143443816 is 618344341.

It can be written as a sum of positive squares in only one way, i.e., 73788100 + 69655716 = 8590^2 + 8346^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×143443816² = 41152256697283712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8965231 + ... + 8965246.

Almost surely, 2^143443816 is an apocalyptic number.

It is an amenable number.

143443816 is a deficient number, since it is larger than the sum of its proper divisors (125513354).

143443816 is a wasteful number, since it uses less digits than its factorization.

143443816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17930483 (or 17930479 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 143443816 is about 11976.8032462757. The cubic root of 143443816 is about 523.4725866689.

The spelling of 143443816 in words is "one hundred forty-three million, four hundred forty-three thousand, eight hundred sixteen".