142424479 has 4 divisors (see below), whose sum is σ = 142551760. Its totient is φ = 142297200.

The previous prime is 142424473. The next prime is 142424483. The reversal of 142424479 is 974424241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142424479 - 2¹¹ = 142422431 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 (142424473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61947 + ... + 64204.

It is an arithmetic number, because the mean of its divisors is an integer number (35637940).

Almost surely, 2^142424479 is an apocalyptic number.

142424479 is a deficient number, since it is larger than the sum of its proper divisors (127281).

142424479 is a wasteful number, since it uses less digits than its factorization.

142424479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127280.

The product of its digits is 64512, while the sum is 37.

The square root of 142424479 is about 11934.1727404961. The cubic root of 142424479 is about 522.2296751129.

It can be divided in two parts, 14242 and 4479, that added together give a triangular number (18721 = T₁₉₃).

The spelling of 142424479 in words is "one hundred forty-two million, four hundred twenty-four thousand, four hundred seventy-nine".