202109043 has 16 divisors (see below), whose sum is σ = 278553600. Its totient is φ = 130277280.

The previous prime is 202109029. The next prime is 202109069. The reversal of 202109043 is 340901202.

202109043 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 202109043 - 2¹⁶ = 202043507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202109003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1438 + ... + 20156.

It is an arithmetic number, because the mean of its divisors is an integer number (17409600).

Almost surely, 2^202109043 is an apocalyptic number.

202109043 is a deficient number, since it is larger than the sum of its proper divisors (76444557).

202109043 is a wasteful number, since it uses less digits than its factorization.

202109043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18842.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 202109043 is about 14216.5060053446. The cubic root of 202109043 is about 586.8519903854.

The spelling of 202109043 in words is "two hundred two million, one hundred nine thousand, forty-three".