205151355 has 24 divisors (see below), whose sum is σ = 358405632. Its totient is φ = 108549504.

The previous prime is 205151339. The next prime is 205151369. The reversal of 205151355 is 553151502.

It is not a de Polignac number, because 205151355 - 2⁴ = 205151339 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12234 + ... + 23663.

It is an arithmetic number, because the mean of its divisors is an integer number (14933568).

Almost surely, 2^205151355 is an apocalyptic number.

205151355 is a deficient number, since it is larger than the sum of its proper divisors (153254277).

205151355 is a wasteful number, since it uses less digits than its factorization.

205151355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36035 (or 36032 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 205151355 is about 14323.1056339050. The cubic root of 205151355 is about 589.7819312840.

The spelling of 205151355 in words is "two hundred five million, one hundred fifty-one thousand, three hundred fifty-five".