361544641 has 4 divisors (see below), whose sum is σ = 368366292. Its totient is φ = 354722992.

The previous prime is 361544639. The next prime is 361544647. The reversal of 361544641 is 146445163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146445163 = 23 ⋅6367181.

It can be written as a sum of positive squares in 2 ways, for example, as 127577025 + 233967616 = 11295^2 + 15296^2 .

It is a cyclic number.

It is not a de Polignac number, because 361544641 - 2¹ = 361544639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 361544597 and 361544606.

It is not an unprimeable number, because it can be changed into a prime (361544647) 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, 3410746 + ... + 3410851.

It is an arithmetic number, because the mean of its divisors is an integer number (92091573).

Almost surely, 2^361544641 is an apocalyptic number.

It is an amenable number.

361544641 is a deficient number, since it is larger than the sum of its proper divisors (6821651).

361544641 is an equidigital number, since it uses as much as digits as its factorization.

361544641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6821650.

The product of its digits is 34560, while the sum is 34.

The square root of 361544641 is about 19014.3272560456. The cubic root of 361544641 is about 712.3946394324.

The spelling of 361544641 in words is "three hundred sixty-one million, five hundred forty-four thousand, six hundred forty-one".