142449 has 8 divisors (see below), whose sum is σ = 192192. Its totient is φ = 93840.

The previous prime is 142433. The next prime is 142453. The reversal of 142449 is 944241.

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

It is not a de Polignac number, because 142449 - 2⁴ = 142433 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142469) 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, 79 + ... + 539.

It is an arithmetic number, because the mean of its divisors is an integer number (24024).

2¹⁴²⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

142449 is a deficient number, since it is larger than the sum of its proper divisors (49743).

142449 is a wasteful number, since it uses less digits than its factorization.

142449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567.

The product of its digits is 1152, while the sum is 24.

The square root of 142449 is about 377.4241645682. The cubic root of 142449 is about 52.2259643882.

The spelling of 142449 in words is "one hundred forty-two thousand, four hundred forty-nine".