11207139 has 4 divisors (see below), whose sum is σ = 14942856. Its totient is φ = 7471424.

The previous prime is 11207129. The next prime is 11207149. The reversal of 11207139 is 93170211.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11207129) and next prime (11207149).

It is a cyclic number.

It is not a de Polignac number, because 11207139 - 2⁸ = 11206883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11207129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1867854 + ... + 1867859.

It is an arithmetic number, because the mean of its divisors is an integer number (3735714).

Almost surely, 2^11207139 is an apocalyptic number.

11207139 is a deficient number, since it is larger than the sum of its proper divisors (3735717).

11207139 is an equidigital number, since it uses as much as digits as its factorization.

11207139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3735716.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 11207139 is about 3347.7065283564. The cubic root of 11207139 is about 223.7853159407.

The spelling of 11207139 in words is "eleven million, two hundred seven thousand, one hundred thirty-nine".