202005045 has 24 divisors (see below), whose sum is σ = 381974112. Its totient is φ = 97941600.

The previous prime is 202005043. The next prime is 202005049. The reversal of 202005045 is 540500202.

It is not a de Polignac number, because 202005045 - 2¹ = 202005043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202005043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203551 + ... + 204540.

It is an arithmetic number, because the mean of its divisors is an integer number (15915588).

Almost surely, 2^202005045 is an apocalyptic number.

It is an amenable number.

202005045 is a deficient number, since it is larger than the sum of its proper divisors (179969067).

202005045 is a wasteful number, since it uses less digits than its factorization.

202005045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408113 (or 408110 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 202005045 is about 14212.8478849244. The cubic root of 202005045 is about 586.7513155160.

Adding to 202005045 its reverse (540500202), we get a palindrome (742505247).

The spelling of 202005045 in words is "two hundred two million, five thousand, forty-five".