360506521 has 4 divisors (see below), whose sum is σ = 360654772. Its totient is φ = 360358272.

The previous prime is 360506519. The next prime is 360506561. The reversal of 360506521 is 125605063.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125605063 = 149 ⋅842987.

It can be written as a sum of positive squares in 2 ways, for example, as 134304921 + 226201600 = 11589^2 + 15040^2 .

It is a cyclic number.

It is not a de Polignac number, because 360506521 - 2¹ = 360506519 is a prime.

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 360506521.

It is not an unprimeable number, because it can be changed into a prime (360506561) 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, 70416 + ... + 75361.

It is an arithmetic number, because the mean of its divisors is an integer number (90163693).

Almost surely, 2^360506521 is an apocalyptic number.

It is an amenable number.

360506521 is a deficient number, since it is larger than the sum of its proper divisors (148251).

360506521 is a wasteful number, since it uses less digits than its factorization.

360506521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148250.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 360506521 is about 18987.0092694979. The cubic root of 360506521 is about 711.7121417947.

The spelling of 360506521 in words is "three hundred sixty million, five hundred six thousand, five hundred twenty-one".