11047139 has 2 divisors, whose sum is σ = 11047140. Its totient is φ = 11047138.

The previous prime is 11047121. The next prime is 11047171. The reversal of 11047139 is 93174011.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11047139 is a prime.

It is not a weakly prime, because it can be changed into another prime (11047339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5523569 + 5523570.

It is an arithmetic number, because the mean of its divisors is an integer number (5523570).

Almost surely, 2^11047139 is an apocalyptic number.

11047139 is a deficient number, since it is larger than the sum of its proper divisors (1).

11047139 is an equidigital number, since it uses as much as digits as its factorization.

11047139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 11047139 is about 3323.7236648073. The cubic root of 11047139 is about 222.7152417820.

The spelling of 11047139 in words is "eleven million, forty-seven thousand, one hundred thirty-nine".