205010145 has 24 divisors (see below), whose sum is σ = 356683392. Its totient is φ = 108928800.

The previous prime is 205010101. The next prime is 205010147. The reversal of 205010145 is 541010502.

205010145 is a `hidden beast` number, since 20 + 501 + 0 + 145 = 666.

It is not a de Polignac number, because 205010145 - 2⁹ = 205009633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205010147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3790 + ... + 20600.

It is an arithmetic number, because the mean of its divisors is an integer number (14861808).

Almost surely, 2^205010145 is an apocalyptic number.

It is an amenable number.

205010145 is a deficient number, since it is larger than the sum of its proper divisors (151673247).

205010145 is a wasteful number, since it uses less digits than its factorization.

205010145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17093 (or 17090 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 205010145 is about 14318.1753376609. The cubic root of 205010145 is about 589.6465804478.

Adding to 205010145 its reverse (541010502), we get a palindrome (746020647).

The spelling of 205010145 in words is "two hundred five million, ten thousand, one hundred forty-five".