1513145 has 4 divisors (see below), whose sum is σ = 1815780. Its totient is φ = 1210512.

The previous prime is 1513139. The next prime is 1513151. The reversal of 1513145 is 5413151.

1513145 is nontrivially palindromic in base 9.

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

It is an interprime number because it is at equal distance from previous prime (1513139) and next prime (1513151).

It can be written as a sum of positive squares in 2 ways, for example, as 606841 + 906304 = 779^2 + 952^2 .

It is a cyclic number.

It is not a de Polignac number, because 1513145 - 2¹⁶ = 1447609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151310 + ... + 151319.

It is an arithmetic number, because the mean of its divisors is an integer number (453945).

2^1513145 is an apocalyptic number.

It is an amenable number.

1513145 is a deficient number, since it is larger than the sum of its proper divisors (302635).

1513145 is an equidigital number, since it uses as much as digits as its factorization.

1513145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302634.

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

The square root of 1513145 is about 1230.0995894642. The cubic root of 1513145 is about 114.8048359604.

Adding to 1513145 its reverse (5413151), we get a palindrome (6926296).

The spelling of 1513145 in words is "one million, five hundred thirteen thousand, one hundred forty-five".