213513145244 has 48 divisors (see below), whose sum is σ = 445648498176. Its totient is φ = 87516158400.

The previous prime is 213513145213. The next prime is 213513145247. The reversal of 213513145244 is 442541315312.

It is a super-3 number, since 3×213513145244³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213513145247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6921134 + ... + 6951914.

It is an arithmetic number, because the mean of its divisors is an integer number (9284343712).

Almost surely, 2^213513145244 is an apocalyptic number.

It is an amenable number.

213513145244 is an abundant number, since it is smaller than the sum of its proper divisors (232135352932).

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

213513145244 is a wasteful number, since it uses less digits than its factorization.

213513145244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41586 (or 41584 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The spelling of 213513145244 in words is "two hundred thirteen billion, five hundred thirteen million, one hundred forty-five thousand, two hundred forty-four".