213133151 has 24 divisors (see below), whose sum is σ = 277001760. Its totient is φ = 160332480.

The previous prime is 213133147. The next prime is 213133159. The reversal of 213133151 is 151331312.

It is not a de Polignac number, because 213133151 - 2² = 213133147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213133159) 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, 20225 + ... + 28901.

It is an arithmetic number, because the mean of its divisors is an integer number (11541740).

Almost surely, 2^213133151 is an apocalyptic number.

213133151 is a deficient number, since it is larger than the sum of its proper divisors (63868609).

213133151 is a wasteful number, since it uses less digits than its factorization.

213133151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8735 (or 8724 counting only the distinct ones).

The product of its digits is 270, while the sum is 20.

The square root of 213133151 is about 14599.0804847429. The cubic root of 213133151 is about 597.3336789568. Note that the first 3 decimals are identical.

Adding to 213133151 its reverse (151331312), we get a palindrome (364464463).

The spelling of 213133151 in words is "two hundred thirteen million, one hundred thirty-three thousand, one hundred fifty-one".