253883138 has 4 divisors (see below), whose sum is σ = 380824710. Its totient is φ = 126941568.

The previous prime is 253883129. The next prime is 253883141. The reversal of 253883138 is 831388352.

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

It can be written as a sum of positive squares in only one way, i.e., 233570089 + 20313049 = 15283^2 + 4507^2 .

It is a junction number, because it is equal to n+sod(n) for n = 253883095 and 253883104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63470783 + ... + 63470786.

Almost surely, 2^253883138 is an apocalyptic number.

253883138 is a deficient number, since it is larger than the sum of its proper divisors (126941572).

253883138 is a wasteful number, since it uses less digits than its factorization.

253883138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126941571.

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

The square root of 253883138 is about 15933.7107416948. The cubic root of 253883138 is about 633.2054135614.

The spelling of 253883138 in words is "two hundred fifty-three million, eight hundred eighty-three thousand, one hundred thirty-eight".