123133238 has 8 divisors (see below), whose sum is σ = 185139840. Its totient is φ = 61419960.

The previous prime is 123133211. The next prime is 123133249. The reversal of 123133238 is 832331321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72278 + ... + 73961.

It is an arithmetic number, because the mean of its divisors is an integer number (23142480).

Almost surely, 2^123133238 is an apocalyptic number.

123133238 is a deficient number, since it is larger than the sum of its proper divisors (62006602).

123133238 is a wasteful number, since it uses less digits than its factorization.

123133238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146662.

The product of its digits is 2592, while the sum is 26.

The square root of 123133238 is about 11096.5417135250. The cubic root of 123133238 is about 497.4984897642.

Adding to 123133238 its reverse (832331321), we get a palindrome (955464559).

It can be divided in two parts, 12313 and 3238, that added together give a palindrome (15551).

The spelling of 123133238 in words is "one hundred twenty-three million, one hundred thirty-three thousand, two hundred thirty-eight".