202539943 has 4 divisors (see below), whose sum is σ = 213199960. Its totient is φ = 191879928.

The previous prime is 202539941. The next prime is 202539949. The reversal of 202539943 is 349935202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202539943 - 2¹ = 202539941 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 (202539941) 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, 5329980 + ... + 5330017.

It is an arithmetic number, because the mean of its divisors is an integer number (53299990).

Almost surely, 2^202539943 is an apocalyptic number.

202539943 is a deficient number, since it is larger than the sum of its proper divisors (10660017).

202539943 is a wasteful number, since it uses less digits than its factorization.

202539943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10660016.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 202539943 is about 14231.6528555189. The cubic root of 202539943 is about 587.2687538983.

The spelling of 202539943 in words is "two hundred two million, five hundred thirty-nine thousand, nine hundred forty-three".