206136572 has 18 divisors (see below), whose sum is σ = 365927184. Its totient is φ = 101606680.

The previous prime is 206136571. The next prime is 206136589. The reversal of 206136572 is 275631602.

206136572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×206136572² = 84984572631822368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206136571) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15053 + ... + 25275.

It is an arithmetic number, because the mean of its divisors is an integer number (20329288).

Almost surely, 2^206136572 is an apocalyptic number.

It is an amenable number.

206136572 is a deficient number, since it is larger than the sum of its proper divisors (159790612).

206136572 is a wasteful number, since it uses less digits than its factorization.

206136572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10369 (or 10296 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 206136572 is about 14357.4570171740. The cubic root of 206136572 is about 590.7245450834.

The spelling of 206136572 in words is "two hundred six million, one hundred thirty-six thousand, five hundred seventy-two".