143641456 has 20 divisors (see below), whose sum is σ = 318063472. Its totient is φ = 61560576.

The previous prime is 143641441. The next prime is 143641481. The reversal of 143641456 is 654146341.

143641456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641145 + ... + 641368.

Almost surely, 2^143641456 is an apocalyptic number.

143641456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

143641456 is an abundant number, since it is smaller than the sum of its proper divisors (174422016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143641456 is a wasteful number, since it uses less digits than its factorization.

143641456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282528 (or 1282522 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 143641456 is about 11985.0513557515. The cubic root of 143641456 is about 523.7128936294.

Adding to 143641456 its reverse (654146341), we get a palindrome (797787797).

The spelling of 143641456 in words is "one hundred forty-three million, six hundred forty-one thousand, four hundred fifty-six".