205461011 has 8 divisors (see below), whose sum is σ = 236254464. Its totient is φ = 175028040.

The previous prime is 205460989. The next prime is 205461013. The reversal of 205461011 is 110164502.

205461011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205461011 is a prime.

It is a super-2 number, since 2×205461011² = 84428454082284242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205461013) 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, 88895 + ... + 91176.

It is an arithmetic number, because the mean of its divisors is an integer number (29531808).

Almost surely, 2^205461011 is an apocalyptic number.

205461011 is a deficient number, since it is larger than the sum of its proper divisors (30793453).

205461011 is a wasteful number, since it uses less digits than its factorization.

205461011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180241.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 205461011 is about 14333.9112247844. The cubic root of 205461011 is about 590.0785215803.

The spelling of 205461011 in words is "two hundred five million, four hundred sixty-one thousand, eleven".