213142916 has 48 divisors (see below), whose sum is σ = 438789120. Its totient is φ = 88693920.

The previous prime is 213142859. The next prime is 213142927. The reversal of 213142916 is 619241312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253625 + ... + 254463.

It is an arithmetic number, because the mean of its divisors is an integer number (9141440).

Almost surely, 2^213142916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213142916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219394560).

213142916 is an abundant number, since it is smaller than the sum of its proper divisors (225646204).

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

213142916 is a wasteful number, since it uses less digits than its factorization.

213142916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104 (or 1102 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 213142916 is about 14599.4149197836. The cubic root of 213142916 is about 597.3428013830.

The spelling of 213142916 in words is "two hundred thirteen million, one hundred forty-two thousand, nine hundred sixteen".