202049189 has 4 divisors (see below), whose sum is σ = 206977260. Its totient is φ = 197121120.

The previous prime is 202049179. The next prime is 202049201. The reversal of 202049189 is 981940202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18852964 + 183196225 = 4342^2 + 13535^2 .

It is a cyclic number.

It is not a de Polignac number, because 202049189 - 2¹⁶ = 201983653 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 (202049129) 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, 2463974 + ... + 2464055.

It is an arithmetic number, because the mean of its divisors is an integer number (51744315).

Almost surely, 2^202049189 is an apocalyptic number.

It is an amenable number.

202049189 is a deficient number, since it is larger than the sum of its proper divisors (4928071).

202049189 is an equidigital number, since it uses as much as digits as its factorization.

202049189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928070.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 202049189 is about 14214.4007611999. The cubic root of 202049189 is about 586.7940531674.

The spelling of 202049189 in words is "two hundred two million, forty-nine thousand, one hundred eighty-nine".