11542138 has 8 divisors (see below), whose sum is σ = 17428320. Its totient is φ = 5732700.

The previous prime is 11542129. The next prime is 11542151. The reversal of 11542138 is 83124511.

11542138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×11542138² = 266441899222088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18808 + ... + 19411.

It is an arithmetic number, because the mean of its divisors is an integer number (2178540).

Almost surely, 2^11542138 is an apocalyptic number.

11542138 is a deficient number, since it is larger than the sum of its proper divisors (5886182).

11542138 is a wasteful number, since it uses less digits than its factorization.

11542138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38372.

The product of its digits is 960, while the sum is 25.

The square root of 11542138 is about 3397.3722198193. The cubic root of 11542138 is about 225.9932255781.

Adding to 11542138 its reverse (83124511), we get a palindrome (94666649).

The spelling of 11542138 in words is "eleven million, five hundred forty-two thousand, one hundred thirty-eight".