338782153 has 4 divisors (see below), whose sum is σ = 338825620. Its totient is φ = 338738688.

The previous prime is 338782133. The next prime is 338782159. The reversal of 338782153 is 351287833.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 351287833 = 13 ⋅27022141.

It can be written as a sum of positive squares in 2 ways, for example, as 96294969 + 242487184 = 9813^2 + 15572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338782153 is a prime.

It is a super-2 number, since 2×338782153² = 229546694382630818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338782159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6468 + ... + 26821.

It is an arithmetic number, because the mean of its divisors is an integer number (84706405).

Almost surely, 2^338782153 is an apocalyptic number.

It is an amenable number.

338782153 is a deficient number, since it is larger than the sum of its proper divisors (43467).

338782153 is a wasteful number, since it uses less digits than its factorization.

338782153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43466.

The product of its digits is 120960, while the sum is 40.

The square root of 338782153 is about 18406.0357763425. The cubic root of 338782153 is about 697.1188741874.

The spelling of 338782153 in words is "three hundred thirty-eight million, seven hundred eighty-two thousand, one hundred fifty-three".