213875242 has 16 divisors (see below), whose sum is σ = 367039872. Its totient is φ = 91561680.

The previous prime is 213875161. The next prime is 213875257. The reversal of 213875242 is 242578312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 213875198 and 213875207.

It is an unprimeable number.

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, 5992 + ... + 21532.

It is an arithmetic number, because the mean of its divisors is an integer number (22939992).

Almost surely, 2^213875242 is an apocalyptic number.

213875242 is a deficient number, since it is larger than the sum of its proper divisors (153164630).

213875242 is a wasteful number, since it uses less digits than its factorization.

213875242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16533.

The product of its digits is 26880, while the sum is 34.

The square root of 213875242 is about 14624.4740760138. The cubic root of 213875242 is about 598.0261450969.

The spelling of 213875242 in words is "two hundred thirteen million, eight hundred seventy-five thousand, two hundred forty-two".