142433393 has 4 divisors (see below), whose sum is σ = 142571520. Its totient is φ = 142295268.

The previous prime is 142433381. The next prime is 142433399. The reversal of 142433393 is 393334241.

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 a cyclic number.

It is not a de Polignac number, because 142433393 - 2¹² = 142429297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142433399) 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, 67505 + ... + 69582.

It is an arithmetic number, because the mean of its divisors is an integer number (35642880).

Almost surely, 2^142433393 is an apocalyptic number.

It is an amenable number.

142433393 is a deficient number, since it is larger than the sum of its proper divisors (138127).

142433393 is a wasteful number, since it uses less digits than its factorization.

142433393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138126.

The product of its digits is 23328, while the sum is 32.

The square root of 142433393 is about 11934.5462000027. The cubic root of 142433393 is about 522.2405699118.

The spelling of 142433393 in words is "one hundred forty-two million, four hundred thirty-three thousand, three hundred ninety-three".