11781162 has 12 divisors (see below), whose sum is σ = 25525890. Its totient is φ = 3927048.

The previous prime is 11781157. The next prime is 11781167. The reversal of 11781162 is 26118711.

It is an interprime number because it is at equal distance from previous prime (11781157) and next prime (11781167).

It can be written as a sum of positive squares in only one way, i.e., 10634121 + 1147041 = 3261^2 + 1071^2 .

It is not an unprimeable number, because it can be changed into a prime (11781167) 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 5 ways as a sum of consecutive naturals, for example, 327237 + ... + 327272.

Almost surely, 2^11781162 is an apocalyptic number.

11781162 is an abundant number, since it is smaller than the sum of its proper divisors (13744728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11781162 is a wasteful number, since it uses less digits than its factorization.

11781162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654517 (or 654514 counting only the distinct ones).

The product of its digits is 672, while the sum is 27.

The square root of 11781162 is about 3432.3697353286. The cubic root of 11781162 is about 227.5425963792.

Adding to 11781162 its reverse (26118711), we get a palindrome (37899873).

The spelling of 11781162 in words is "eleven million, seven hundred eighty-one thousand, one hundred sixty-two".