1161749 has 2 divisors, whose sum is σ = 1161750. Its totient is φ = 1161748.

The previous prime is 1161703. The next prime is 1161757. The reversal of 1161749 is 9471611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628849 + 532900 = 793^2 + 730^2 .

It is an emirp because it is prime and its reverse (9471611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161749 - 2⁸ = 1161493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580874 + 580875.

It is an arithmetic number, because the mean of its divisors is an integer number (580875).

2^1161749 is an apocalyptic number.

It is an amenable number.

1161749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161749 is an equidigital number, since it uses as much as digits as its factorization.

1161749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 29.

The square root of 1161749 is about 1077.8446084664. The cubic root of 1161749 is about 105.1245385477.

The spelling of 1161749 in words is "one million, one hundred sixty-one thousand, seven hundred forty-nine".