363241561 has 4 divisors (see below), whose sum is σ = 363970000. Its totient is φ = 362513124.

The previous prime is 363241531. The next prime is 363241577. The reversal of 363241561 is 165142363.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 165142363 = 31 ⋅5327173.

It is a cyclic number.

It is not a de Polignac number, because 363241561 - 2⁷ = 363241433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (363241531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363471 + ... + 364468.

It is an arithmetic number, because the mean of its divisors is an integer number (90992500).

Almost surely, 2^363241561 is an apocalyptic number.

It is an amenable number.

363241561 is a deficient number, since it is larger than the sum of its proper divisors (728439).

363241561 is an equidigital number, since it uses as much as digits as its factorization.

363241561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728438.

The product of its digits is 12960, while the sum is 31.

The square root of 363241561 is about 19058.8971611686. The cubic root of 363241561 is about 713.5074483748.

The spelling of 363241561 in words is "three hundred sixty-three million, two hundred forty-one thousand, five hundred sixty-one".