202131093 has 4 divisors (see below), whose sum is σ = 269508128. Its totient is φ = 134754060.

The previous prime is 202131091. The next prime is 202131113. The reversal of 202131093 is 390131202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 202131093 - 2¹ = 202131091 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 (202131091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33688513 + ... + 33688518.

It is an arithmetic number, because the mean of its divisors is an integer number (67377032).

Almost surely, 2^202131093 is an apocalyptic number.

It is an amenable number.

202131093 is a deficient number, since it is larger than the sum of its proper divisors (67377035).

202131093 is an equidigital number, since it uses as much as digits as its factorization.

202131093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67377034.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 202131093 is about 14217.2814911994. The cubic root of 202131093 is about 586.8733313665.

Adding to 202131093 its reverse (390131202), we get a palindrome (592262295).

The spelling of 202131093 in words is "two hundred two million, one hundred thirty-one thousand, ninety-three".