1160405 has 4 divisors (see below), whose sum is σ = 1392492. Its totient is φ = 928320.

The previous prime is 1160371. The next prime is 1160407. The reversal of 1160405 is 5040611.

It is a happy number.

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 844561 + 315844 = 919^2 + 562^2 .

It is not a de Polignac number, because 1160405 - 2¹⁰ = 1159381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1160407) 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 in 3 ways as a sum of consecutive naturals, for example, 116036 + ... + 116045.

It is an arithmetic number, because the mean of its divisors is an integer number (348123).

2^1160405 is an apocalyptic number.

It is an amenable number.

1160405 is a deficient number, since it is larger than the sum of its proper divisors (232087).

1160405 is an equidigital number, since it uses as much as digits as its factorization.

1160405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232086.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1160405 is about 1077.2209615487. The cubic root of 1160405 is about 105.0839842057.

The spelling of 1160405 in words is "one million, one hundred sixty thousand, four hundred five".