1187353 has 2 divisors, whose sum is σ = 1187354. Its totient is φ = 1187352.

The previous prime is 1187341. The next prime is 1187357. The reversal of 1187353 is 3537811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 597529 + 589824 = 773^2 + 768^2 .

It is an emirp because it is prime and its reverse (3537811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1187353 - 2⁵ = 1187321 is a prime.

1187353 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1187357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593676 + 593677.

It is an arithmetic number, because the mean of its divisors is an integer number (593677).

2^1187353 is an apocalyptic number.

It is an amenable number.

1187353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1187353 is an equidigital number, since it uses as much as digits as its factorization.

1187353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 28.

The square root of 1187353 is about 1089.6572855719. The cubic root of 1187353 is about 105.8912198396.

It can be divided in two parts, 1187 and 353, that added together give a triangular number (1540 = T₅₅).

The spelling of 1187353 in words is "one million, one hundred eighty-seven thousand, three hundred fifty-three".