213013144 has 16 divisors (see below), whose sum is σ = 410194800. Its totient is φ = 103627872.

The previous prime is 213013117. The next prime is 213013147. The reversal of 213013144 is 441310312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213013147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359524 + ... + 360115.

It is an arithmetic number, because the mean of its divisors is an integer number (25637175).

Almost surely, 2^213013144 is an apocalyptic number.

It is an amenable number.

213013144 is a deficient number, since it is larger than the sum of its proper divisors (197181656).

213013144 is a wasteful number, since it uses less digits than its factorization.

213013144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719682 (or 719678 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 213013144 is about 14594.9698183998. The cubic root of 213013144 is about 597.2215461095.

Adding to 213013144 its reverse (441310312), we get a palindrome (654323456).

The spelling of 213013144 in words is "two hundred thirteen million, thirteen thousand, one hundred forty-four".