204154061 has 4 divisors (see below), whose sum is σ = 204184512. Its totient is φ = 204123612.

The previous prime is 204154051. The next prime is 204154073. The reversal of 204154061 is 160451402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160451402 = 2 ⋅80225701.

It is a cyclic number.

It is not a de Polignac number, because 204154061 - 2¹⁸ = 203891917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204154051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275 + ... + 20208.

It is an arithmetic number, because the mean of its divisors is an integer number (51046128).

Almost surely, 2^204154061 is an apocalyptic number.

It is an amenable number.

204154061 is a deficient number, since it is larger than the sum of its proper divisors (30451).

204154061 is an equidigital number, since it uses as much as digits as its factorization.

204154061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30450.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 204154061 is about 14288.2490529806. The cubic root of 204154061 is about 588.8246840976.

The spelling of 204154061 in words is "two hundred four million, one hundred fifty-four thousand, sixty-one".