202004145 has 64 divisors (see below), whose sum is σ = 413038080. Its totient is φ = 91756800.

The previous prime is 202004093. The next prime is 202004161. The reversal of 202004145 is 541400202.

It is not a de Polignac number, because 202004145 - 2⁸ = 202003889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 170455 + ... + 171635.

It is an arithmetic number, because the mean of its divisors is an integer number (6453720).

Almost surely, 2^202004145 is an apocalyptic number.

It is an amenable number.

202004145 is an abundant number, since it is smaller than the sum of its proper divisors (211033935).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202004145 is a wasteful number, since it uses less digits than its factorization.

202004145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383 (or 1377 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 202004145 is about 14212.8162233950. The cubic root of 202004145 is about 586.7504441237.

Adding to 202004145 its reverse (541400202), we get a palindrome (743404347).

The spelling of 202004145 in words is "two hundred two million, four thousand, one hundred forty-five".