206072001 has 24 divisors (see below), whose sum is σ = 300957696. Its totient is φ = 135869760.

The previous prime is 206071963. The next prime is 206072051. The reversal of 206072001 is 100270602.

It is a happy number.

It is not a de Polignac number, because 206072001 - 2¹⁵ = 206039233 is a prime.

It is a super-2 number, since 2×206072001² = 84931339192288002, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206072051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 537856 + ... + 538238.

It is an arithmetic number, because the mean of its divisors is an integer number (12539904).

Almost surely, 2^206072001 is an apocalyptic number.

It is an amenable number.

206072001 is a deficient number, since it is larger than the sum of its proper divisors (94885695).

206072001 is a wasteful number, since it uses less digits than its factorization.

206072001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 206072001 is about 14355.2081489611. The cubic root of 206072001 is about 590.6628583778.

The spelling of 206072001 in words is "two hundred six million, seventy-two thousand, one".