143397 has 16 divisors (see below), whose sum is σ = 218880. Its totient is φ = 92736.

The previous prime is 143387. The next prime is 143401. The reversal of 143397 is 793341.

It is not a de Polignac number, because 143397 - 2⁶ = 143333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

143397 is a lucky number.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 143397.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143397.

It is not an unprimeable number, because it can be changed into a prime (143357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1213 + ... + 1325.

It is an arithmetic number, because the mean of its divisors is an integer number (13680).

2¹⁴³³⁹⁷ is an apocalyptic number.

It is an amenable number.

143397 is a deficient number, since it is larger than the sum of its proper divisors (75483).

143397 is a wasteful number, since it uses less digits than its factorization.

143397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 163 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 143397 is about 378.6779634465. The cubic root of 143397 is about 52.3415631595.

The spelling of 143397 in words is "one hundred forty-three thousand, three hundred ninety-seven".