202042137 has 32 divisors (see below), whose sum is σ = 306270720. Its totient is φ = 117392000.

The previous prime is 202042129. The next prime is 202042147. The reversal of 202042137 is 731240202.

It is not a de Polignac number, because 202042137 - 2³ = 202042129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202042147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78562 + ... + 81092.

It is an arithmetic number, because the mean of its divisors is an integer number (9570960).

Almost surely, 2^202042137 is an apocalyptic number.

It is an amenable number.

202042137 is a deficient number, since it is larger than the sum of its proper divisors (104228583).

202042137 is a wasteful number, since it uses less digits than its factorization.

202042137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 202042137 is about 14214.1527007416. The cubic root of 202042137 is about 586.7872262493.

Adding to 202042137 its reverse (731240202), we get a palindrome (933282339).

The spelling of 202042137 in words is "two hundred two million, forty-two thousand, one hundred thirty-seven".