11142374 has 4 divisors (see below), whose sum is σ = 16713564. Its totient is φ = 5571186.

The previous prime is 11142371. The next prime is 11142377. The reversal of 11142374 is 47324111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47324111 = 887 ⋅53353.

It is an interprime number because it is at equal distance from previous prime (11142371) and next prime (11142377).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2785592 + ... + 2785595.

It is an arithmetic number, because the mean of its divisors is an integer number (4178391).

Almost surely, 2^11142374 is an apocalyptic number.

11142374 is a deficient number, since it is larger than the sum of its proper divisors (5571190).

11142374 is an equidigital number, since it uses as much as digits as its factorization.

11142374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571189.

The product of its digits is 672, while the sum is 23.

The square root of 11142374 is about 3338.0194726814. The cubic root of 11142374 is about 223.3534047949.

Adding to 11142374 its reverse (47324111), we get a palindrome (58466485).

The spelling of 11142374 in words is "eleven million, one hundred forty-two thousand, three hundred seventy-four".