143649368 has 8 divisors (see below), whose sum is σ = 269342580. Its totient is φ = 71824680.

The previous prime is 143649307. The next prime is 143649377. The reversal of 143649368 is 863946341.

143649368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8978078 + ... + 8978093.

Almost surely, 2^143649368 is an apocalyptic number.

It is an amenable number.

143649368 is a deficient number, since it is larger than the sum of its proper divisors (125693212).

143649368 is a wasteful number, since it uses less digits than its factorization.

143649368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17956177 (or 17956173 counting only the distinct ones).

The product of its digits is 373248, while the sum is 44.

The square root of 143649368 is about 11985.3814290577. The cubic root of 143649368 is about 523.7225090995.

It can be divided in two parts, 14364 and 9368, that added together give a palindrome (23732).

The spelling of 143649368 in words is "one hundred forty-three million, six hundred forty-nine thousand, three hundred sixty-eight".