253681348 has 12 divisors (see below), whose sum is σ = 444130092. Its totient is φ = 126787040.

The previous prime is 253681333. The next prime is 253681387. The reversal of 253681348 is 843186352.

It can be written as a sum of positive squares in 2 ways, for example, as 136002244 + 117679104 = 11662^2 + 10848^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253681348.

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, 1615 + ... + 22582.

It is an arithmetic number, because the mean of its divisors is an integer number (37010841).

Almost surely, 2^253681348 is an apocalyptic number.

It is an amenable number.

253681348 is a deficient number, since it is larger than the sum of its proper divisors (190448744).

253681348 is a wasteful number, since it uses less digits than its factorization.

253681348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26822 (or 26820 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 253681348 is about 15927.3773107816. The cubic root of 253681348 is about 633.0376088138.

The spelling of 253681348 in words is "two hundred fifty-three million, six hundred eighty-one thousand, three hundred forty-eight".