1163545 has 4 divisors (see below), whose sum is σ = 1396260. Its totient is φ = 930832.

The previous prime is 1163543. The next prime is 1163551. The reversal of 1163545 is 5453611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5453611 = 73 ⋅74707.

It can be written as a sum of positive squares in 2 ways, for example, as 793881 + 369664 = 891^2 + 608^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163545 - 2¹ = 1163543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1163543) 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, 116350 + ... + 116359.

It is an arithmetic number, because the mean of its divisors is an integer number (349065).

2^1163545 is an apocalyptic number.

It is an amenable number.

1163545 is a deficient number, since it is larger than the sum of its proper divisors (232715).

1163545 is an equidigital number, since it uses as much as digits as its factorization.

1163545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232714.

The product of its digits is 1800, while the sum is 25.

The square root of 1163545 is about 1078.6774309310. The cubic root of 1163545 is about 105.1786829057.

The spelling of 1163545 in words is "one million, one hundred sixty-three thousand, five hundred forty-five".