355072189 has 4 divisors (see below), whose sum is σ = 355296124. Its totient is φ = 354848256.

The previous prime is 355072153. The next prime is 355072213. The reversal of 355072189 is 981270553.

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

It can be written as a sum of positive squares in 2 ways, for example, as 149866564 + 205205625 = 12242^2 + 14325^2 .

It is a cyclic number.

It is not a de Polignac number, because 355072189 - 2¹¹ = 355070141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355072129) 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 in 3 ways as a sum of consecutive naturals, for example, 109572 + ... + 112765.

It is an arithmetic number, because the mean of its divisors is an integer number (88824031).

Almost surely, 2^355072189 is an apocalyptic number.

It is an amenable number.

355072189 is a deficient number, since it is larger than the sum of its proper divisors (223935).

355072189 is a wasteful number, since it uses less digits than its factorization.

355072189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223934.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 355072189 is about 18843.3592811898. The cubic root of 355072189 is about 708.1178670258.

The spelling of 355072189 in words is "three hundred fifty-five million, seventy-two thousand, one hundred eighty-nine".