213547630 has 16 divisors (see below), whose sum is σ = 389652624. Its totient is φ = 84248640.

The previous prime is 213547627. The next prime is 213547637. The reversal of 213547630 is 36745312.

It is a junction number, because it is equal to n+sod(n) for n = 213547592 and 213547601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213547637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145536 + ... + 146995.

It is an arithmetic number, because the mean of its divisors is an integer number (24353289).

Almost surely, 2^213547630 is an apocalyptic number.

213547630 is a deficient number, since it is larger than the sum of its proper divisors (176104994).

213547630 is a wasteful number, since it uses less digits than its factorization.

213547630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292611.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 213547630 is about 14613.2689703570. The cubic root of 213547630 is about 597.7206388568.

The spelling of 213547630 in words is "two hundred thirteen million, five hundred forty-seven thousand, six hundred thirty".