361265243 has 4 divisors (see below), whose sum is σ = 361403568. Its totient is φ = 361126920.

The previous prime is 361265239. The next prime is 361265287. The reversal of 361265243 is 342562163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342562163 = 9109 ⋅37607.

It is a cyclic number.

It is not a de Polignac number, because 361265243 - 2² = 361265239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361265843) 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, 65168 + ... + 70493.

It is an arithmetic number, because the mean of its divisors is an integer number (90350892).

Almost surely, 2^361265243 is an apocalyptic number.

361265243 is a deficient number, since it is larger than the sum of its proper divisors (138325).

361265243 is a wasteful number, since it uses less digits than its factorization.

361265243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138324.

The product of its digits is 25920, while the sum is 32.

The square root of 361265243 is about 19006.9787972734. The cubic root of 361265243 is about 712.2110817106.

The spelling of 361265243 in words is "three hundred sixty-one million, two hundred sixty-five thousand, two hundred forty-three".