206152154 has 8 divisors (see below), whose sum is σ = 333015060. Its totient is φ = 95147136.

The previous prime is 206152153. The next prime is 206152169. The reversal of 206152154 is 451251602.

It can be written as a sum of positive squares in 2 ways, for example, as 182871529 + 23280625 = 13523^2 + 4825^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 7928929 = 206152154 / (2 + 0 + 6 + 1 + 5 + 2 + 1 + 5 + 4).

It is not an unprimeable number, because it can be changed into a prime (206152153) 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, 3964439 + ... + 3964490.

Almost surely, 2^206152154 is an apocalyptic number.

206152154 is a deficient number, since it is larger than the sum of its proper divisors (126862906).

206152154 is a wasteful number, since it uses less digits than its factorization.

206152154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7928944.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 206152154 is about 14357.9996517621. Note that the first 3 decimals coincide. The cubic root of 206152154 is about 590.7394291282.

The spelling of 206152154 in words is "two hundred six million, one hundred fifty-two thousand, one hundred fifty-four".