201242239 has 12 divisors (see below), whose sum is σ = 224240128. Its totient is φ = 180433440.

The previous prime is 201242221. The next prime is 201242257. The reversal of 201242239 is 932242102.

It is an interprime number because it is at equal distance from previous prime (201242221) and next prime (201242257).

It is not a de Polignac number, because 201242239 - 2⁵ = 201242207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201242539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2559 + ... + 20224.

Almost surely, 2^201242239 is an apocalyptic number.

201242239 is a deficient number, since it is larger than the sum of its proper divisors (22997889).

201242239 is a wasteful number, since it uses less digits than its factorization.

201242239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22878 (or 22867 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 201242239 is about 14185.9874171663. The cubic root of 201242239 is about 586.0118257582.

The spelling of 201242239 in words is "two hundred one million, two hundred forty-two thousand, two hundred thirty-nine".