11172739 has 2 divisors, whose sum is σ = 11172740. Its totient is φ = 11172738.

The previous prime is 11172731. The next prime is 11172767. The reversal of 11172739 is 93727111.

It is a weak prime.

It is an emirp because it is prime and its reverse (93727111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11172739 - 2³ = 11172731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11172739.

It is not a weakly prime, because it can be changed into another prime (11172731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5586369 + 5586370.

It is an arithmetic number, because the mean of its divisors is an integer number (5586370).

Almost surely, 2^11172739 is an apocalyptic number.

11172739 is a deficient number, since it is larger than the sum of its proper divisors (1).

11172739 is an equidigital number, since it uses as much as digits as its factorization.

11172739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2646, while the sum is 31.

The square root of 11172739 is about 3342.5647338533. The cubic root of 11172739 is about 223.5561136792.

It can be divided in two parts, 11172 and 739, that added together give a palindrome (11911).

The spelling of 11172739 in words is "eleven million, one hundred seventy-two thousand, seven hundred thirty-nine".