11608381 has 8 divisors (see below), whose sum is σ = 12046680. Its totient is φ = 11172672.

The previous prime is 11608379. The next prime is 11608393. The reversal of 11608381 is 18380611.

It is a happy number.

11608381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 116281 + 11492100 = 341^2 + 3390^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11608381 - 2¹ = 11608379 is a prime.

It is a super-2 number, since 2×11608381² = 269509018882322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11608301) 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 in 7 ways as a sum of consecutive naturals, for example, 17451 + ... + 18103.

It is an arithmetic number, because the mean of its divisors is an integer number (1505835).

Almost surely, 2^11608381 is an apocalyptic number.

It is an amenable number.

11608381 is a deficient number, since it is larger than the sum of its proper divisors (438299).

11608381 is an equidigital number, since it uses as much as digits as its factorization.

11608381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 11608381 is about 3407.1074241943. The cubic root of 11608381 is about 226.4247435675.

Adding to 11608381 its reverse (18380611), we get a palindrome (29988992).

The spelling of 11608381 in words is "eleven million, six hundred eight thousand, three hundred eighty-one".