143853 has 4 divisors (see below), whose sum is σ = 191808. Its totient is φ = 95900.

The previous prime is 143833. The next prime is 143873. The reversal of 143853 is 358341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 358341 = 3 ⋅119447.

It is an interprime number because it is at equal distance from previous prime (143833) and next prime (143873).

It is a cyclic number.

It is not a de Polignac number, because 143853 - 2⁵ = 143821 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23973 + ... + 23978.

It is an arithmetic number, because the mean of its divisors is an integer number (47952).

2¹⁴³⁸⁵³ is an apocalyptic number.

It is an amenable number.

143853 is a deficient number, since it is larger than the sum of its proper divisors (47955).

143853 is an equidigital number, since it uses as much as digits as its factorization.

143853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47954.

The product of its digits is 1440, while the sum is 24.

The square root of 143853 is about 379.2795802571. The cubic root of 143853 is about 52.3969862105.

The spelling of 143853 in words is "one hundred forty-three thousand, eight hundred fifty-three".