623133142 has 4 divisors (see below), whose sum is σ = 934699716. Its totient is φ = 311566570.

The previous prime is 623133131. The next prime is 623133151. The reversal of 623133142 is 241331326.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241331326 = 2 ⋅120665663.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155783284 + ... + 155783287.

It is an arithmetic number, because the mean of its divisors is an integer number (233674929).

Almost surely, 2^623133142 is an apocalyptic number.

623133142 is a deficient number, since it is larger than the sum of its proper divisors (311566574).

623133142 is a wasteful number, since it uses less digits than its factorization.

623133142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311566573.

The product of its digits is 2592, while the sum is 25.

The square root of 623133142 is about 24962.6349170115. The cubic root of 623133142 is about 854.1358490768.

Adding to 623133142 its reverse (241331326), we get a palindrome (864464468).

The spelling of 623133142 in words is "six hundred twenty-three million, one hundred thirty-three thousand, one hundred forty-two".