1513143 has 6 divisors (see below), whose sum is σ = 2185664. Its totient is φ = 1008756.

The previous prime is 1513139. The next prime is 1513151. The reversal of 1513143 is 3413151.

It is not a de Polignac number, because 1513143 - 2² = 1513139 is a prime.

It is a Duffinian number.

1513143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84055 + ... + 84072.

2^1513143 is an apocalyptic number.

1513143 is a deficient number, since it is larger than the sum of its proper divisors (672521).

1513143 is a wasteful number, since it uses less digits than its factorization.

1513143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168133 (or 168130 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 1513143 is about 1230.0987765216. The cubic root of 1513143 is about 114.8047853792.

Adding to 1513143 its reverse (3413151), we get a palindrome (4926294).

The spelling of 1513143 in words is "one million, five hundred thirteen thousand, one hundred forty-three".