1513530020 has 24 divisors (see below), whose sum is σ = 3187089024. Its totient is φ = 603759456.

The previous prime is 1513530017. The next prime is 1513530037. The reversal of 1513530020 is 200353151.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1513529974 and 1513530001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95762 + ... + 110441.

It is an arithmetic number, because the mean of its divisors is an integer number (132795376).

Almost surely, 2^1513530020 is an apocalyptic number.

1513530020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1513530020 is an abundant number, since it is smaller than the sum of its proper divisors (1673559004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1513530020 is a wasteful number, since it uses less digits than its factorization.

1513530020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206579 (or 206577 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 1513530020 is about 38904.1131501542. The cubic root of 1513530020 is about 1148.1457250454.

Adding to 1513530020 its reverse (200353151), we get a palindrome (1713883171).

The spelling of 1513530020 in words is "one billion, five hundred thirteen million, five hundred thirty thousand, twenty".