1513142643 has 16 divisors (see below), whose sum is σ = 2099019776. Its totient is φ = 968526720.

The previous prime is 1513142641. The next prime is 1513142663. The reversal of 1513142643 is 3462413151.

1513142643 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1513142643 - 2¹ = 1513142641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1513142643.

It is not an unprimeable number, because it can be changed into a prime (1513142641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52246 + ... + 75867.

It is an arithmetic number, because the mean of its divisors is an integer number (131188736).

Almost surely, 2^1513142643 is an apocalyptic number.

1513142643 is a deficient number, since it is larger than the sum of its proper divisors (585877133).

1513142643 is a wasteful number, since it uses less digits than its factorization.

1513142643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128274.

The product of its digits is 8640, while the sum is 30.

The square root of 1513142643 is about 38899.1342191571. The cubic root of 1513142643 is about 1148.0477635050.

Adding to 1513142643 its reverse (3462413151), we get a palindrome (4975555794).

The spelling of 1513142643 in words is "one billion, five hundred thirteen million, one hundred forty-two thousand, six hundred forty-three".