11641138 has 4 divisors (see below), whose sum is σ = 17461710. Its totient is φ = 5820568.

The previous prime is 11641121. The next prime is 11641139. The reversal of 11641138 is 83114611.

It is a happy number.

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., 11607649 + 33489 = 3407^2 + 183^2 .

It is not an unprimeable number, because it can be changed into a prime (11641139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2910283 + ... + 2910286.

Almost surely, 2^11641138 is an apocalyptic number.

11641138 is a deficient number, since it is larger than the sum of its proper divisors (5820572).

11641138 is an equidigital number, since it uses as much as digits as its factorization.

11641138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5820571.

The product of its digits is 576, while the sum is 25.

The square root of 11641138 is about 3411.9111946239. The cubic root of 11641138 is about 226.6375217237.

Adding to 11641138 its reverse (83114611), we get a palindrome (94755749).

The spelling of 11641138 in words is "eleven million, six hundred forty-one thousand, one hundred thirty-eight".