153388238 has 4 divisors (see below), whose sum is σ = 230082360. Its totient is φ = 76694118.

The previous prime is 153388237. The next prime is 153388241. The reversal of 153388238 is 832883351.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 153388195 and 153388204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153388237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38347058 + ... + 38347061.

It is an arithmetic number, because the mean of its divisors is an integer number (57520590).

Almost surely, 2^153388238 is an apocalyptic number.

153388238 is a deficient number, since it is larger than the sum of its proper divisors (76694122).

153388238 is an equidigital number, since it uses as much as digits as its factorization.

153388238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76694121.

The product of its digits is 138240, while the sum is 41.

The square root of 153388238 is about 12385.0005248284. Note that the first 3 decimals coincide. The cubic root of 153388238 is about 535.3001349672.

The spelling of 153388238 in words is "one hundred fifty-three million, three hundred eighty-eight thousand, two hundred thirty-eight".