1161593 has 4 divisors (see below), whose sum is σ = 1229940. Its totient is φ = 1093248.

The previous prime is 1161581. The next prime is 1161599. The reversal of 1161593 is 3951611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1026169 + 135424 = 1013^2 + 368^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161593 - 2⁶ = 1161529 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1161599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34148 + ... + 34181.

It is an arithmetic number, because the mean of its divisors is an integer number (307485).

2^1161593 is an apocalyptic number.

It is an amenable number.

1161593 is a deficient number, since it is larger than the sum of its proper divisors (68347).

1161593 is an equidigital number, since it uses as much as digits as its factorization.

1161593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68346.

The product of its digits is 810, while the sum is 26.

The square root of 1161593 is about 1077.7722393901. The cubic root of 1161593 is about 105.1198329524.

The spelling of 1161593 in words is "one million, one hundred sixty-one thousand, five hundred ninety-three".