1613113512 has 64 divisors (see below), whose sum is σ = 4209226560. Its totient is φ = 514675200.

The previous prime is 1613113499. The next prime is 1613113543. The reversal of 1613113512 is 2153113161.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36687 + ... + 67617.

It is an arithmetic number, because the mean of its divisors is an integer number (65769165).

Almost surely, 2^1613113512 is an apocalyptic number.

1613113512 is a gapful number since it is divisible by the number (12) 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 1613113512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2104613280).

1613113512 is an abundant number, since it is smaller than the sum of its proper divisors (2596113048).

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

1613113512 is a wasteful number, since it uses less digits than its factorization.

1613113512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31034 (or 31030 counting only the distinct ones).

The product of its digits is 540, while the sum is 24.

The square root of 1613113512 is about 40163.5844017936. The cubic root of 1613113512 is about 1172.7937503351.

Adding to 1613113512 its reverse (2153113161), we get a palindrome (3766226673).

The spelling of 1613113512 in words is "one billion, six hundred thirteen million, one hundred thirteen thousand, five hundred twelve".