361198241 has 4 divisors (see below), whose sum is σ = 361242132. Its totient is φ = 361154352.

The previous prime is 361198217. The next prime is 361198247. The reversal of 361198241 is 142891163.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 142891163 = 9769 ⋅14627.

It can be written as a sum of positive squares in 2 ways, for example, as 199374400 + 161823841 = 14120^2 + 12721^2 .

It is a cyclic number.

It is not a de Polignac number, because 361198241 - 2²² = 357003937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361198247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5486 + ... + 27431.

It is an arithmetic number, because the mean of its divisors is an integer number (90310533).

Almost surely, 2^361198241 is an apocalyptic number.

361198241 is the 10973-rd octagonal number.

It is an amenable number.

361198241 is a deficient number, since it is larger than the sum of its proper divisors (43891).

361198241 is a wasteful number, since it uses less digits than its factorization.

361198241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43890.

The product of its digits is 10368, while the sum is 35.

The square root of 361198241 is about 19005.2161524146. The cubic root of 361198241 is about 712.1670489505.

The spelling of 361198241 in words is "three hundred sixty-one million, one hundred ninety-eight thousand, two hundred forty-one".