1181407 has 2 divisors, whose sum is σ = 1181408. Its totient is φ = 1181406.

The previous prime is 1181329. The next prime is 1181413. The reversal of 1181407 is 7041811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1181407 is a prime.

1181407 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1181437) 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 as a sum of consecutive naturals, namely, 590703 + 590704.

It is an arithmetic number, because the mean of its divisors is an integer number (590704).

2^1181407 is an apocalyptic number.

1181407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1181407 is an equidigital number, since it uses as much as digits as its factorization.

1181407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 1181407 is about 1086.9254804263. The cubic root of 1181407 is about 105.7141640577.

It can be divided in two parts, 11 and 81407, that added together give a palindrome (81418).

The spelling of 1181407 in words is "one million, one hundred eighty-one thousand, four hundred seven".