206157125 has 32 divisors (see below), whose sum is σ = 275458560. Its totient is φ = 153576000.

The previous prime is 206157109. The next prime is 206157131. The reversal of 206157125 is 521751602.

It is not a de Polignac number, because 206157125 - 2⁴ = 206157109 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 144164 + ... + 145586.

It is an arithmetic number, because the mean of its divisors is an integer number (8608080).

Almost surely, 2^206157125 is an apocalyptic number.

206157125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206157125 is a deficient number, since it is larger than the sum of its proper divisors (69301435).

206157125 is a wasteful number, since it uses less digits than its factorization.

206157125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 206157125 is about 14358.1727597909. The cubic root of 206157125 is about 590.7441773074.

The spelling of 206157125 in words is "two hundred six million, one hundred fifty-seven thousand, one hundred twenty-five".