213006242 has 8 divisors (see below), whose sum is σ = 320458476. Its totient is φ = 106186752.

The previous prime is 213006221. The next prime is 213006251. The reversal of 213006242 is 242600312.

213006242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 211731601 + 1274641 = 14551^2 + 1129^2 .

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

It is a super-3 number, since 3×213006242³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157343 + ... + 158690.

Almost surely, 2^213006242 is an apocalyptic number.

213006242 is a deficient number, since it is larger than the sum of its proper divisors (107452234).

213006242 is a wasteful number, since it uses less digits than its factorization.

213006242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316372.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 213006242 is about 14594.7333651561. The cubic root of 213006242 is about 597.2150956975.

Adding to 213006242 its reverse (242600312), we get a palindrome (455606554).

The spelling of 213006242 in words is "two hundred thirteen million, six thousand, two hundred forty-two".