613512372 has 48 divisors (see below), whose sum is σ = 1569661632. Its totient is φ = 184961280.

The previous prime is 613512359. The next prime is 613512379. The reversal of 613512372 is 273215316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613512379) 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 15 ways as a sum of consecutive naturals, for example, 14208 + ... + 37800.

It is an arithmetic number, because the mean of its divisors is an integer number (32701284).

Almost surely, 2^613512372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613512372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784830816).

613512372 is an abundant number, since it is smaller than the sum of its proper divisors (956149260).

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

613512372 is a wasteful number, since it uses less digits than its factorization.

613512372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23808 (or 23806 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 613512372 is about 24769.1819000951. The cubic root of 613512372 is about 849.7172632874.

Adding to 613512372 its reverse (273215316), we get a palindrome (886727688).

The spelling of 613512372 in words is "six hundred thirteen million, five hundred twelve thousand, three hundred seventy-two".