143889056 has 12 divisors (see below), whose sum is σ = 283281642. Its totient is φ = 71944512.

The previous prime is 143889029. The next prime is 143889079. The reversal of 143889056 is 650988341.

It can be written as a sum of positive squares in only one way, i.e., 78925456 + 64963600 = 8884^2 + 8060^2 .

It is a super-2 number, since 2×143889056² = 41408120873142272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 143888998 and 143889016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2248235 + ... + 2248298.

Almost surely, 2^143889056 is an apocalyptic number.

143889056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

143889056 is a deficient number, since it is larger than the sum of its proper divisors (139392586).

143889056 is an equidigital number, since it uses as much as digits as its factorization.

143889056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496543 (or 4496535 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 143889056 is about 11995.3764426132. The cubic root of 143889056 is about 524.0136352142.

The spelling of 143889056 in words is "one hundred forty-three million, eight hundred eighty-nine thousand, fifty-six".