143857452 has 12 divisors (see below), whose sum is σ = 335667416. Its totient is φ = 47952480.

The previous prime is 143857411. The next prime is 143857501. The reversal of 143857452 is 254758341.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 143857452.

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, 5994049 + ... + 5994072.

Almost surely, 2^143857452 is an apocalyptic number.

143857452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

143857452 is an abundant number, since it is smaller than the sum of its proper divisors (191809964).

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

143857452 is a wasteful number, since it uses less digits than its factorization.

143857452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11988128 (or 11988126 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 143857452 is about 11994.0590293695. The cubic root of 143857452 is about 523.9752673679.

The spelling of 143857452 in words is "one hundred forty-three million, eight hundred fifty-seven thousand, four hundred fifty-two".