285161354 has 4 divisors (see below), whose sum is σ = 427742034. Its totient is φ = 142580676.

The previous prime is 285161353. The next prime is 285161363. The reversal of 285161354 is 453161582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 205148329 + 80013025 = 14323^2 + 8945^2 .

It is a super-2 number, since 2×285161354² = 162633995630226632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (285161353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71290337 + ... + 71290340.

Almost surely, 2^285161354 is an apocalyptic number.

285161354 is a deficient number, since it is larger than the sum of its proper divisors (142580680).

285161354 is a wasteful number, since it uses less digits than its factorization.

285161354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142580679.

The product of its digits is 28800, while the sum is 35.

The square root of 285161354 is about 16886.7212329688. The cubic root of 285161354 is about 658.2086055575.

The spelling of 285161354 in words is "two hundred eighty-five million, one hundred sixty-one thousand, three hundred fifty-four".