205462155 has 16 divisors (see below), whose sum is σ = 331107840. Its totient is φ = 108790368.

The previous prime is 205462139. The next prime is 205462163. The reversal of 205462155 is 551264502.

It is not a de Polignac number, because 205462155 - 2⁴ = 205462139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47187 + ... + 51356.

It is an arithmetic number, because the mean of its divisors is an integer number (20694240).

Almost surely, 2^205462155 is an apocalyptic number.

205462155 is a deficient number, since it is larger than the sum of its proper divisors (125645685).

205462155 is a wasteful number, since it uses less digits than its factorization.

205462155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98690.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 205462155 is about 14333.9511300967. The cubic root of 205462155 is about 590.0796167574.

The spelling of 205462155 in words is "two hundred five million, four hundred sixty-two thousand, one hundred fifty-five".