512802136 has 128 divisors (see below), whose sum is σ = 1241049600. Its totient is φ = 192890880.

The previous prime is 512802131. The next prime is 512802167. The reversal of 512802136 is 631208215.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512802131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3689155 + ... + 3689293.

It is an arithmetic number, because the mean of its divisors is an integer number (9695700).

Almost surely, 2^512802136 is an apocalyptic number.

512802136 is a gapful number since it is divisible by the number (56) 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 512802136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620524800).

512802136 is an abundant number, since it is smaller than the sum of its proper divisors (728247464).

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

512802136 is a wasteful number, since it uses less digits than its factorization.

512802136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 512802136 is about 22645.1349300462. The cubic root of 512802136 is about 800.4175611821.

The spelling of 512802136 in words is "five hundred twelve million, eight hundred two thousand, one hundred thirty-six".