213522145353 has 24 divisors (see below), whose sum is σ = 336959182560. Its totient is φ = 129215036160.

The previous prime is 213522145339. The next prime is 213522145363. The reversal of 213522145353 is 353541225312.

213522145353 is a `hidden beast` number, since 2 + 135 + 2 + 21 + 453 + 53 = 666.

It is not a de Polignac number, because 213522145353 - 2⁵ = 213522145321 is a prime.

It is a super-2 number, since 2×213522145353² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213522145363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1535743 + ... + 1668996.

It is an arithmetic number, because the mean of its divisors is an integer number (14039965940).

Almost surely, 2^213522145353 is an apocalyptic number.

It is an amenable number.

213522145353 is a deficient number, since it is larger than the sum of its proper divisors (123437037207).

213522145353 is a wasteful number, since it uses less digits than its factorization.

213522145353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205429 (or 3205426 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The spelling of 213522145353 in words is "two hundred thirteen billion, five hundred twenty-two million, one hundred forty-five thousand, three hundred fifty-three".