253321138 has 8 divisors (see below), whose sum is σ = 434264832. Its totient is φ = 108566196.

The previous prime is 253321111. The next prime is 253321151. The reversal of 253321138 is 831123352.

253321138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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, 9047170 + ... + 9047197.

It is an arithmetic number, because the mean of its divisors is an integer number (54283104).

Almost surely, 2^253321138 is an apocalyptic number.

253321138 is a deficient number, since it is larger than the sum of its proper divisors (180943694).

253321138 is a wasteful number, since it uses less digits than its factorization.

253321138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18094376.

The product of its digits is 4320, while the sum is 28.

The square root of 253321138 is about 15916.0654057465. The cubic root of 253321138 is about 632.7378436538.

The spelling of 253321138 in words is "two hundred fifty-three million, three hundred twenty-one thousand, one hundred thirty-eight".