213151272 has 32 divisors (see below), whose sum is σ = 560925600. Its totient is φ = 67310784.

The previous prime is 213151271. The next prime is 213151273. The reversal of 213151272 is 272151312.

It is an interprime number because it is at equal distance from previous prime (213151271) and next prime (213151273).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (213151271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233263 + ... + 234174.

It is an arithmetic number, because the mean of its divisors is an integer number (17528925).

Almost surely, 2^213151272 is an apocalyptic number.

It is an amenable number.

213151272 is an abundant number, since it is smaller than the sum of its proper divisors (347774328).

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

213151272 is a wasteful number, since it uses less digits than its factorization.

213151272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467465 (or 467461 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 213151272 is about 14599.7010928306. The cubic root of 213151272 is about 597.3506073054.

The spelling of 213151272 in words is "two hundred thirteen million, one hundred fifty-one thousand, two hundred seventy-two".