143693 has 4 divisors (see below), whose sum is σ = 156768. Its totient is φ = 130620.

The previous prime is 143687. The next prime is 143699. The reversal of 143693 is 396341.

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.

It is an interprime number because it is at equal distance from previous prime (143687) and next prime (143699).

It is a cyclic number.

It is not a de Polignac number, because 143693 - 2⁴ = 143677 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143699) 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, 6521 + ... + 6542.

It is an arithmetic number, because the mean of its divisors is an integer number (39192).

2¹⁴³⁶⁹³ is an apocalyptic number.

It is an amenable number.

143693 is a deficient number, since it is larger than the sum of its proper divisors (13075).

143693 is a wasteful number, since it uses less digits than its factorization.

143693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13074.

The product of its digits is 1944, while the sum is 26.

The square root of 143693 is about 379.0685953756. The cubic root of 143693 is about 52.3775528818.

It can be divided in two parts, 143 and 693, that multiplied together give a palindrome (99099).

The spelling of 143693 in words is "one hundred forty-three thousand, six hundred ninety-three".