242200139 has 8 divisors (see below), whose sum is σ = 257779440. Its totient is φ = 226768896.

The previous prime is 242200111. The next prime is 242200151. The reversal of 242200139 is 931002242.

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

It is a cyclic number.

It is not a de Polignac number, because 242200139 - 2¹⁶ = 242134603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242200939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33629 + ... + 40190.

It is an arithmetic number, because the mean of its divisors is an integer number (32222430).

Almost surely, 2^242200139 is an apocalyptic number.

242200139 is a deficient number, since it is larger than the sum of its proper divisors (15579301).

242200139 is a wasteful number, since it uses less digits than its factorization.

242200139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74029.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 242200139 is about 15562.7805677520. The cubic root of 242200139 is about 623.3397120289.

The spelling of 242200139 in words is "two hundred forty-two million, two hundred thousand, one hundred thirty-nine".