11142377 has 2 divisors, whose sum is σ = 11142378. Its totient is φ = 11142376.

The previous prime is 11142371. The next prime is 11142401. The reversal of 11142377 is 77324111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9357481 + 1784896 = 3059^2 + 1336^2 .

It is an emirp because it is prime and its reverse (77324111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11142377 is a prime.

It is not a weakly prime, because it can be changed into another prime (11142371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5571188 + 5571189.

It is an arithmetic number, because the mean of its divisors is an integer number (5571189).

Almost surely, 2^11142377 is an apocalyptic number.

It is an amenable number.

11142377 is a deficient number, since it is larger than the sum of its proper divisors (1).

11142377 is an equidigital number, since it uses as much as digits as its factorization.

11142377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 26.

The square root of 11142377 is about 3338.0199220496. The cubic root of 11142377 is about 223.3534248403.

Adding to 11142377 its reverse (77324111), we get a palindrome (88466488).

The spelling of 11142377 in words is "eleven million, one hundred forty-two thousand, three hundred seventy-seven".