206572071 has 8 divisors (see below), whose sum is σ = 275606640. Its totient is φ = 137626112.

The previous prime is 206572057. The next prime is 206572087. The reversal of 206572071 is 170275602.

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 206572071 - 2⁶ = 206572007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206572021) 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, 16506 + ... + 26183.

It is an arithmetic number, because the mean of its divisors is an integer number (34450830).

Almost surely, 2^206572071 is an apocalyptic number.

206572071 is a deficient number, since it is larger than the sum of its proper divisors (69034569).

206572071 is a wasteful number, since it uses less digits than its factorization.

206572071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44305.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 206572071 is about 14372.6153152445. The cubic root of 206572071 is about 591.1402549044.

The spelling of 206572071 in words is "two hundred six million, five hundred seventy-two thousand, seventy-one".