205146153 has 12 divisors (see below), whose sum is σ = 296760048. Its totient is φ = 136562040.

The previous prime is 205146121. The next prime is 205146181. The reversal of 205146153 is 351641502.

It is not a de Polignac number, because 205146153 - 2⁵ = 205146121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205146113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10275 + ... + 22712.

It is an arithmetic number, because the mean of its divisors is an integer number (24730004).

Almost surely, 2^205146153 is an apocalyptic number.

It is an amenable number.

205146153 is a deficient number, since it is larger than the sum of its proper divisors (91613895).

205146153 is a wasteful number, since it uses less digits than its factorization.

205146153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33684 (or 33681 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 205146153 is about 14322.9240380587. The cubic root of 205146153 is about 589.7769462303.

Adding to 205146153 its reverse (351641502), we get a palindrome (556787655).

The spelling of 205146153 in words is "two hundred five million, one hundred forty-six thousand, one hundred fifty-three".