361620513 has 24 divisors (see below), whose sum is σ = 547065792. Its totient is φ = 229746528.

The previous prime is 361620463. The next prime is 361620563. The reversal of 361620513 is 315026163.

361620513 is a `hidden beast` number, since 36 + 1 + 620 + 5 + 1 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (361620463) and next prime (361620563).

It is not a de Polignac number, because 361620513 - 2²⁴ = 344843297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (361620563) 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 23 ways as a sum of consecutive naturals, for example, 55495 + ... + 61667.

It is an arithmetic number, because the mean of its divisors is an integer number (22794408).

Almost surely, 2^361620513 is an apocalyptic number.

It is an amenable number.

361620513 is a deficient number, since it is larger than the sum of its proper divisors (185445279).

361620513 is a wasteful number, since it uses less digits than its factorization.

361620513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6485 (or 6482 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 361620513 is about 19016.3222785059. The cubic root of 361620513 is about 712.4444691717. Note that the first 4 decimals are identical.

Adding to 361620513 its reverse (315026163), we get a palindrome (676646676).

The spelling of 361620513 in words is "three hundred sixty-one million, six hundred twenty thousand, five hundred thirteen".