1513283868 has 144 divisors (see below), whose sum is σ = 4053329280. Its totient is φ = 475517952.

The previous prime is 1513283851. The next prime is 1513283869. The reversal of 1513283868 is 8683823151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513283869) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7681546 + ... + 7681742.

It is an arithmetic number, because the mean of its divisors is an integer number (28148120).

Almost surely, 2^1513283868 is an apocalyptic number.

1513283868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1513283868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2026664640).

1513283868 is an abundant number, since it is smaller than the sum of its proper divisors (2540045412).

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

1513283868 is a wasteful number, since it uses less digits than its factorization.

1513283868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 391 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 1513283868 is about 38900.9494485674. The cubic root of 1513283868 is about 1148.0834790190.

It can be divided in two parts, 1513283 and 868, that added together give a palindrome (1514151).

The spelling of 1513283868 in words is "one billion, five hundred thirteen million, two hundred eighty-three thousand, eight hundred sixty-eight".