513180972 has 144 divisors (see below), whose sum is σ = 1429620192. Its totient is φ = 154552320.

The previous prime is 513180959. The next prime is 513181061. The reversal of 513180972 is 279081315.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2966278 + ... + 2966450.

It is an arithmetic number, because the mean of its divisors is an integer number (9927918).

Almost surely, 2^513180972 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 513180972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714810096).

513180972 is an abundant number, since it is smaller than the sum of its proper divisors (916439220).

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

513180972 is a wasteful number, since it uses less digits than its factorization.

513180972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 513180972 is about 22653.4980080340. The cubic root of 513180972 is about 800.6146172694.

The spelling of 513180972 in words is "five hundred thirteen million, one hundred eighty thousand, nine hundred seventy-two".