1145513 has 4 divisors (see below), whose sum is σ = 1147908. Its totient is φ = 1143120.

The previous prime is 1145509. The next prime is 1145533. The reversal of 1145513 is 3155411.

1145513 is nontrivially palindromic in base 9.

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 719104 + 426409 = 848^2 + 653^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145513 - 2² = 1145509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145533) 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, 206 + ... + 1527.

It is an arithmetic number, because the mean of its divisors is an integer number (286977).

2^1145513 is an apocalyptic number.

It is an amenable number.

1145513 is a deficient number, since it is larger than the sum of its proper divisors (2395).

1145513 is an equidigital number, since it uses as much as digits as its factorization.

1145513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394.

The product of its digits is 300, while the sum is 20.

The square root of 1145513 is about 1070.2864102660. The cubic root of 1145513 is about 104.6325173370.

The spelling of 1145513 in words is "one million, one hundred forty-five thousand, five hundred thirteen".