213148872 has 48 divisors (see below), whose sum is σ = 579218640. Its totient is φ = 70810848.

The previous prime is 213148853. The next prime is 213148877. The reversal of 213148872 is 278841312.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (213148877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17283 + ... + 26925.

It is an arithmetic number, because the mean of its divisors is an integer number (12067055).

Almost surely, 2^213148872 is an apocalyptic number.

It is an amenable number.

213148872 is an abundant number, since it is smaller than the sum of its proper divisors (366069768).

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

213148872 is a wasteful number, since it uses less digits than its factorization.

213148872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9962 (or 9955 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 213148872 is about 14599.6188991357. The cubic root of 213148872 is about 597.3483653189.

The spelling of 213148872 in words is "two hundred thirteen million, one hundred forty-eight thousand, eight hundred seventy-two".