205462045 has 8 divisors (see below), whose sum is σ = 246686040. Its totient is φ = 164281920.

The previous prime is 205462043. The next prime is 205462063. The reversal of 205462045 is 540264502.

It can be written as a sum of positive squares in 4 ways, for example, as 8508889 + 196953156 = 2917^2 + 14034^2 .

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

It is not a de Polignac number, because 205462045 - 2¹ = 205462043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205462043) 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, 415 + ... + 20275.

It is an arithmetic number, because the mean of its divisors is an integer number (30835755).

Almost surely, 2^205462045 is an apocalyptic number.

It is an amenable number.

205462045 is a deficient number, since it is larger than the sum of its proper divisors (41223995).

205462045 is a wasteful number, since it uses less digits than its factorization.

205462045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21935.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 205462045 is about 14333.9472930523. The cubic root of 205462045 is about 590.0795114521.

The spelling of 205462045 in words is "two hundred five million, four hundred sixty-two thousand, forty-five".