1161493 has 2 divisors, whose sum is σ = 1161494. Its totient is φ = 1161492.

The previous prime is 1161487. The next prime is 1161497. The reversal of 1161493 is 3941611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 675684 + 485809 = 822^2 + 697^2 .

It is an emirp because it is prime and its reverse (3941611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1161493 is a prime.

1161493 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580746 + 580747.

It is an arithmetic number, because the mean of its divisors is an integer number (580747).

2^1161493 is an apocalyptic number.

It is an amenable number.

1161493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161493 is an equidigital number, since it uses as much as digits as its factorization.

1161493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 1161493 is about 1077.7258464007. The cubic root of 1161493 is about 105.1168163235.

It can be divided in two parts, 11 and 61493, that added together give a square (61504 = 248²).

The spelling of 1161493 in words is "one million, one hundred sixty-one thousand, four hundred ninety-three".