11512147 has 2 divisors, whose sum is σ = 11512148. Its totient is φ = 11512146.

The previous prime is 11512097. The next prime is 11512177. The reversal of 11512147 is 74121511.

It is a strong prime.

It is an emirp because it is prime and its reverse (74121511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11512147 - 2¹¹ = 11510099 is a prime.

It is not a weakly prime, because it can be changed into another prime (11512177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5756073 + 5756074.

It is an arithmetic number, because the mean of its divisors is an integer number (5756074).

Almost surely, 2^11512147 is an apocalyptic number.

11512147 is a deficient number, since it is larger than the sum of its proper divisors (1).

11512147 is an equidigital number, since it uses as much as digits as its factorization.

11512147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 280, while the sum is 22.

The square root of 11512147 is about 3392.9554963188. The cubic root of 11512147 is about 225.7973161274.

Adding to 11512147 its reverse (74121511), we get a palindrome (85633658).

The spelling of 11512147 in words is "eleven million, five hundred twelve thousand, one hundred forty-seven".