201645162 has 12 divisors (see below), whose sum is σ = 436897890. Its totient is φ = 67215048.

The previous prime is 201645161. The next prime is 201645203. The reversal of 201645162 is 261546102.

201645162 is a `hidden beast` number, since 2 + 0 + 1 + 645 + 16 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 101425041 + 100220121 = 10071^2 + 10011^2 .

It is not an unprimeable number, because it can be changed into a prime (201645161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5601237 + ... + 5601272.

Almost surely, 2^201645162 is an apocalyptic number.

201645162 is an abundant number, since it is smaller than the sum of its proper divisors (235252728).

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

201645162 is a wasteful number, since it uses less digits than its factorization.

201645162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11202517 (or 11202514 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 201645162 is about 14200.1817594001. The cubic root of 201645162 is about 586.4026652357.

The spelling of 201645162 in words is "two hundred one million, six hundred forty-five thousand, one hundred sixty-two".