142342733 has 8 divisors (see below), whose sum is σ = 153389208. Its totient is φ = 131310144.

The previous prime is 142342723. The next prime is 142342757. The reversal of 142342733 is 337243241.

It can be written as a sum of positive squares in 4 ways, for example, as 77668969 + 64673764 = 8813^2 + 8042^2 .

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 142342733 - 2⁸ = 142342477 is a prime.

It is a super-2 number, since 2×142342733² = 40522907275818578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142342696 and 142342705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142342703) 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 7 ways as a sum of consecutive naturals, for example, 29435 + ... + 33927.

It is an arithmetic number, because the mean of its divisors is an integer number (19173651).

Almost surely, 2^142342733 is an apocalyptic number.

142342733 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142342733 is a deficient number, since it is larger than the sum of its proper divisors (11046475).

142342733 is a wasteful number, since it uses less digits than its factorization.

142342733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6943.

The product of its digits is 12096, while the sum is 29.

The square root of 142342733 is about 11930.7473780983. The cubic root of 142342733 is about 522.1297429537.

Adding to 142342733 its reverse (337243241), we get a palindrome (479585974).

The spelling of 142342733 in words is "one hundred forty-two million, three hundred forty-two thousand, seven hundred thirty-three".