142023633 has 4 divisors (see below), whose sum is σ = 189364848. Its totient is φ = 94682420.

The previous prime is 142023611. The next prime is 142023659. The reversal of 142023633 is 336320241.

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: 336320241 = 3 ⋅112106747.

It is a cyclic number.

It is not a de Polignac number, because 142023633 - 2⁸ = 142023377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142023683) 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, 23670603 + ... + 23670608.

It is an arithmetic number, because the mean of its divisors is an integer number (47341212).

Almost surely, 2^142023633 is an apocalyptic number.

It is an amenable number.

142023633 is a deficient number, since it is larger than the sum of its proper divisors (47341215).

142023633 is an equidigital number, since it uses as much as digits as its factorization.

142023633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47341214.

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

The square root of 142023633 is about 11917.3668652098. The cubic root of 142023633 is about 521.7392856995.

Adding to 142023633 its reverse (336320241), we get a palindrome (478343874).

The spelling of 142023633 in words is "one hundred forty-two million, twenty-three thousand, six hundred thirty-three".