213189516 has 24 divisors (see below), whose sum is σ = 552713840. Its totient is φ = 71063136.

The previous prime is 213189497. The next prime is 213189517. The reversal of 213189516 is 615981312.

213189516 is a `hidden beast` number, since 2 + 131 + 8 + 9 + 516 = 666.

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 (213189517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986881 + ... + 987096.

Almost surely, 2^213189516 is an apocalyptic number.

It is an amenable number.

213189516 is an abundant number, since it is smaller than the sum of its proper divisors (339524324).

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

213189516 is a wasteful number, since it uses less digits than its factorization.

213189516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973990 (or 1973982 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 213189516 is about 14601.0107869284. The cubic root of 213189516 is about 597.3863310901.

The spelling of 213189516 in words is "two hundred thirteen million, one hundred eighty-nine thousand, five hundred sixteen".