361620243 has 12 divisors (see below), whose sum is σ = 553066488. Its totient is φ = 226898880.

The previous prime is 361620241. The next prime is 361620269. The reversal of 361620243 is 342026163.

361620243 is a `hidden beast` number, since 3 + 616 + 2 + 0 + 2 + 43 = 666.

It is not a de Polignac number, because 361620243 - 2¹ = 361620241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (361620241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1181613 + ... + 1181918.

It is an arithmetic number, because the mean of its divisors is an integer number (46088874).

Almost surely, 2^361620243 is an apocalyptic number.

361620243 is a deficient number, since it is larger than the sum of its proper divisors (191446245).

361620243 is a wasteful number, since it uses less digits than its factorization.

361620243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363554 (or 2363551 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 361620243 is about 19016.3151793401. The cubic root of 361620243 is about 712.4442918587. Note that the first 3 decimals are identical.

The spelling of 361620243 in words is "three hundred sixty-one million, six hundred twenty thousand, two hundred forty-three".