202149 has 8 divisors (see below), whose sum is σ = 299520. Its totient is φ = 134748.

The previous prime is 202129. The next prime is 202183. The reversal of 202149 is 941202.

202149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202149 - 2⁷ = 202021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3717 + ... + 3770.

It is an arithmetic number, because the mean of its divisors is an integer number (37440).

2²⁰²¹⁴⁹ is an apocalyptic number.

It is an amenable number.

202149 is a deficient number, since it is larger than the sum of its proper divisors (97371).

202149 is an equidigital number, since it uses as much as digits as its factorization.

202149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7496 (or 7490 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 202149 is about 449.6098308534. The cubic root of 202149 is about 58.6890661424.

It can be divided in two parts, 202 and 149, that added together give a triangular number (351 = T₂₆).

The spelling of 202149 in words is "two hundred two thousand, one hundred forty-nine".