36201521 has 4 divisors (see below), whose sum is σ = 37369344. Its totient is φ = 35033700.

The previous prime is 36201509. The next prime is 36201527. The reversal of 36201521 is 12510263.

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: 12510263 = 1019 ⋅12277.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36201521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36201493 and 36201502.

It is not an unprimeable number, because it can be changed into a prime (36201527) 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, 583865 + ... + 583926.

It is an arithmetic number, because the mean of its divisors is an integer number (9342336).

Almost surely, 2^36201521 is an apocalyptic number.

36201521 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

36201521 is a deficient number, since it is larger than the sum of its proper divisors (1167823).

36201521 is a wasteful number, since it uses less digits than its factorization.

36201521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167822.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 36201521 is about 6016.7699806458. The cubic root of 36201521 is about 330.8076970380.

Adding to 36201521 its reverse (12510263), we get a palindrome (48711784).

The spelling of 36201521 in words is "thirty-six million, two hundred one thousand, five hundred twenty-one".