213533146 has 8 divisors (see below), whose sum is σ = 330632064. Its totient is φ = 103322460.

The previous prime is 213533137. The next prime is 213533147. The reversal of 213533146 is 641335312.

213533146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (213533147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721980 + ... + 1722103.

It is an arithmetic number, because the mean of its divisors is an integer number (41329008).

Almost surely, 2^213533146 is an apocalyptic number.

213533146 is a deficient number, since it is larger than the sum of its proper divisors (117098918).

213533146 is a wasteful number, since it uses less digits than its factorization.

213533146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444116.

The product of its digits is 6480, while the sum is 28.

The square root of 213533146 is about 14612.7733849533. The cubic root of 213533146 is about 597.7071249607.

Adding to 213533146 its reverse (641335312), we get a palindrome (854868458).

The spelling of 213533146 in words is "two hundred thirteen million, five hundred thirty-three thousand, one hundred forty-six".