202261 has 4 divisors (see below), whose sum is σ = 203392. Its totient is φ = 201132.

The previous prime is 202243. The next prime is 202277. The reversal of 202261 is 162202.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 162202 = 2 ⋅81101.

It is a cyclic number.

It is not a de Polignac number, because 202261 - 2¹³ = 194069 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 (202201) 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, 231 + ... + 676.

It is an arithmetic number, because the mean of its divisors is an integer number (50848).

2²⁰²²⁶¹ is an apocalyptic number.

It is an amenable number.

202261 is a deficient number, since it is larger than the sum of its proper divisors (1131).

202261 is an equidigital number, since it uses as much as digits as its factorization.

202261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 202261 is about 449.7343660429. The cubic root of 202261 is about 58.6999029704.

Adding to 202261 its reverse (162202), we get a palindrome (364463).

The spelling of 202261 in words is "two hundred two thousand, two hundred sixty-one".