1145545 has 8 divisors (see below), whose sum is σ = 1455624. Its totient is φ = 862464.

The previous prime is 1145539. The next prime is 1145593. The reversal of 1145545 is 5455411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 328329 + 817216 = 573^2 + 904^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1145545 - 2³ = 1145537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6654 + ... + 6823.

It is an arithmetic number, because the mean of its divisors is an integer number (181953).

2^1145545 is an apocalyptic number.

It is an amenable number.

1145545 is a deficient number, since it is larger than the sum of its proper divisors (310079).

1145545 is a wasteful number, since it uses less digits than its factorization.

1145545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13499.

The product of its digits is 2000, while the sum is 25.

The square root of 1145545 is about 1070.3013594311. The cubic root of 1145545 is about 104.6334916339.

The spelling of 1145545 in words is "one million, one hundred forty-five thousand, five hundred forty-five".