142333431 has 16 divisors (see below), whose sum is σ = 198389760. Its totient is φ = 90660960.

The previous prime is 142333423. The next prime is 142333459. The reversal of 142333431 is 134333241.

It is not a de Polignac number, because 142333431 - 2³ = 142333423 is a prime.

It is a super-2 number, since 2×142333431² = 40517611160463522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142333481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2340 + ... + 17033.

It is an arithmetic number, because the mean of its divisors is an integer number (12399360).

Almost surely, 2^142333431 is an apocalyptic number.

142333431 is a deficient number, since it is larger than the sum of its proper divisors (56056329).

142333431 is a wasteful number, since it uses less digits than its factorization.

142333431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19486.

The product of its digits is 2592, while the sum is 24.

The square root of 142333431 is about 11930.3575386490. The cubic root of 142333431 is about 522.1183690990.

Adding to 142333431 its reverse (134333241), we get a palindrome (276666672).

The spelling of 142333431 in words is "one hundred forty-two million, three hundred thirty-three thousand, four hundred thirty-one".