201540082 has 16 divisors (see below), whose sum is σ = 314847000. Its totient is φ = 96638080.

The previous prime is 201540043. The next prime is 201540121. The reversal of 201540082 is 280045102.

It is an interprime number because it is at equal distance from previous prime (201540043) and next prime (201540121).

It can be written as a sum of positive squares in 4 ways, for example, as 134119561 + 67420521 = 11581^2 + 8211^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3019 + ... + 20302.

Almost surely, 2^201540082 is an apocalyptic number.

201540082 is a deficient number, since it is larger than the sum of its proper divisors (113306918).

201540082 is a wasteful number, since it uses less digits than its factorization.

201540082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23501.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 201540082 is about 14196.4813246100. The cubic root of 201540082 is about 586.3007867708.

Adding to 201540082 its reverse (280045102), we get a palindrome (481585184).

The spelling of 201540082 in words is "two hundred one million, five hundred forty thousand, eighty-two".