142493 has 8 divisors (see below), whose sum is σ = 156408. Its totient is φ = 129024.

The previous prime is 142469. The next prime is 142501. The reversal of 142493 is 394241.

142493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3364 + 139129 = 58^2 + 373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142493 - 2⁸ = 142237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205 + ... + 1317.

It is an arithmetic number, because the mean of its divisors is an integer number (19551).

2¹⁴²⁴⁹³ is an apocalyptic number.

142493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142493 is a deficient number, since it is larger than the sum of its proper divisors (13915).

142493 is a wasteful number, since it uses less digits than its factorization.

142493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223.

The product of its digits is 864, while the sum is 23.

The square root of 142493 is about 377.4824499232. The cubic root of 142493 is about 52.2313410631.

The spelling of 142493 in words is "one hundred forty-two thousand, four hundred ninety-three".