213182530 has 32 divisors (see below), whose sum is σ = 429935040. Its totient is φ = 75424320.

The previous prime is 213182521. The next prime is 213182539. The reversal of 213182530 is 35281312.

It is an interprime number because it is at equal distance from previous prime (213182521) and next prime (213182539).

It is a junction number, because it is equal to n+sod(n) for n = 213182495 and 213182504.

It is not an unprimeable number, because it can be changed into a prime (213182539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22120 + ... + 30259.

It is an arithmetic number, because the mean of its divisors is an integer number (13435470).

Almost surely, 2^213182530 is an apocalyptic number.

213182530 is an abundant number, since it is smaller than the sum of its proper divisors (216752510).

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

213182530 is a wasteful number, since it uses less digits than its factorization.

213182530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52434.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 213182530 is about 14600.7715549556. The cubic root of 213182530 is about 597.3798057747.

The spelling of 213182530 in words is "two hundred thirteen million, one hundred eighty-two thousand, five hundred thirty".