205157269 has 8 divisors (see below), whose sum is σ = 218998080. Its totient is φ = 191620800.

The previous prime is 205157261. The next prime is 205157279. The reversal of 205157269 is 962751502.

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 205157269 - 2³ = 205157261 is a prime.

It is a super-2 number, since 2×205157269² = 84179010047076722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205157261) 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, 74692 + ... + 77389.

It is an arithmetic number, because the mean of its divisors is an integer number (27374760).

Almost surely, 2^205157269 is an apocalyptic number.

It is an amenable number.

205157269 is a deficient number, since it is larger than the sum of its proper divisors (13840811).

205157269 is a wasteful number, since it uses less digits than its factorization.

205157269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152171.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 205157269 is about 14323.3120820570. The cubic root of 205157269 is about 589.7875985417.

The spelling of 205157269 in words is "two hundred five million, one hundred fifty-seven thousand, two hundred sixty-nine".