201380081 has 8 divisors (see below), whose sum is σ = 231155520. Its totient is φ = 171856368.

The previous prime is 201380071. The next prime is 201380083. The reversal of 201380081 is 180083102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201380081 is a prime.

It is a super-2 number, since 2×201380081² = 81107874047133122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201380083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61211 + ... + 64416.

It is an arithmetic number, because the mean of its divisors is an integer number (28894440).

Almost surely, 2^201380081 is an apocalyptic number.

It is an amenable number.

201380081 is a deficient number, since it is larger than the sum of its proper divisors (29775439).

201380081 is a wasteful number, since it uses less digits than its factorization.

201380081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125863.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 201380081 is about 14190.8449713187. The cubic root of 201380081 is about 586.1455925833.

The spelling of 201380081 in words is "two hundred one million, three hundred eighty thousand, eighty-one".