204145707 has 8 divisors (see below), whose sum is σ = 288205776. Its totient is φ = 128091392.

The previous prime is 204145693. The next prime is 204145727. The reversal of 204145707 is 707541402.

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

It is a cyclic number.

It is not a de Polignac number, because 204145707 - 2⁸ = 204145451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204145727) 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 7 ways as a sum of consecutive naturals, for example, 2001378 + ... + 2001479.

It is an arithmetic number, because the mean of its divisors is an integer number (36025722).

Almost surely, 2^204145707 is an apocalyptic number.

204145707 is a deficient number, since it is larger than the sum of its proper divisors (84060069).

204145707 is a wasteful number, since it uses less digits than its factorization.

204145707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002877.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 204145707 is about 14287.9567118605. The cubic root of 204145707 is about 588.8166524041.

The spelling of 204145707 in words is "two hundred four million, one hundred forty-five thousand, seven hundred seven".