142130433 has 4 divisors (see below), whose sum is σ = 189507248. Its totient is φ = 94753620.

The previous prime is 142130423. The next prime is 142130459. The reversal of 142130433 is 334031241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 334031241 = 3 ⋅111343747.

It is not a de Polignac number, because 142130433 - 2¹⁸ = 141868289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142130413) 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, 23688403 + ... + 23688408.

It is an arithmetic number, because the mean of its divisors is an integer number (47376812).

Almost surely, 2^142130433 is an apocalyptic number.

It is an amenable number.

142130433 is a deficient number, since it is larger than the sum of its proper divisors (47376815).

142130433 is an equidigital number, since it uses as much as digits as its factorization.

142130433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47376814.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 142130433 is about 11921.8468787349. The cubic root of 142130433 is about 521.8700334092.

Adding to 142130433 its reverse (334031241), we get a palindrome (476161674).

The spelling of 142130433 in words is "one hundred forty-two million, one hundred thirty thousand, four hundred thirty-three".