201652681 has 8 divisors (see below), whose sum is σ = 214146720. Its totient is φ = 189346752.

The previous prime is 201652673. The next prime is 201652687. The reversal of 201652681 is 186256102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201652681 - 2³ = 201652673 is a prime.

It is a super-2 number, since 2×201652681² = 81327607508975522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201652687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44815 + ... + 49108.

It is an arithmetic number, because the mean of its divisors is an integer number (26768340).

Almost surely, 2^201652681 is an apocalyptic number.

It is an amenable number.

201652681 is a deficient number, since it is larger than the sum of its proper divisors (12494039).

201652681 is a wasteful number, since it uses less digits than its factorization.

201652681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94055.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 201652681 is about 14200.4465070645. The cubic root of 201652681 is about 586.4099537928.

The spelling of 201652681 in words is "two hundred one million, six hundred fifty-two thousand, six hundred eighty-one".