202542345 has 24 divisors (see below), whose sum is σ = 353116296. Its totient is φ = 107394048.

The previous prime is 202542323. The next prime is 202542367. The reversal of 202542345 is 543245202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (202542323) and next prime (202542367).

It can be written as a sum of positive squares in 4 ways, for example, as 83557881 + 118984464 = 9141^2 + 10908^2 .

It is not a de Polignac number, because 202542345 - 2⁶ = 202542281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5224 + ... + 20793.

It is an arithmetic number, because the mean of its divisors is an integer number (14713179).

Almost surely, 2^202542345 is an apocalyptic number.

It is an amenable number.

202542345 is a deficient number, since it is larger than the sum of its proper divisors (150573951).

202542345 is a wasteful number, since it uses less digits than its factorization.

202542345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26201 (or 26198 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 202542345 is about 14231.7372446234. The cubic root of 202542345 is about 587.2710754387.

Adding to 202542345 its reverse (543245202), we get a palindrome (745787547).

The spelling of 202542345 in words is "two hundred two million, five hundred forty-two thousand, three hundred forty-five".