361271521 has 8 divisors (see below), whose sum is σ = 389211200. Its totient is φ = 333353232.

The previous prime is 361271513. The next prime is 361271549. The reversal of 361271521 is 125172163.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 361271521 - 2³ = 361271513 is a prime.

It is a super-2 number, since 2×361271521² = 261034223771306882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 361271521.

It is not an unprimeable number, because it can be changed into a prime (361271221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55180 + ... + 61378.

It is an arithmetic number, because the mean of its divisors is an integer number (48651400).

Almost surely, 2^361271521 is an apocalyptic number.

It is an amenable number.

361271521 is a deficient number, since it is larger than the sum of its proper divisors (27939679).

361271521 is a wasteful number, since it uses less digits than its factorization.

361271521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10695.

The product of its digits is 2520, while the sum is 28.

The square root of 361271521 is about 19007.1439464218. The cubic root of 361271521 is about 712.2152072438.

It can be divided in two parts, 3612 and 71521, that multiplied together give a palindrome (258333852).

The spelling of 361271521 in words is "three hundred sixty-one million, two hundred seventy-one thousand, five hundred twenty-one".