36737521 has 4 divisors (see below), whose sum is σ = 36750832. Its totient is φ = 36724212.

The previous prime is 36737483. The next prime is 36737531. The reversal of 36737521 is 12573763.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12573763 = 19 ⋅661777.

It is a cyclic number.

It is not a de Polignac number, because 36737521 - 2⁹ = 36737009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36737531) 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 3 ways as a sum of consecutive naturals, for example, 795 + ... + 8608.

It is an arithmetic number, because the mean of its divisors is an integer number (9187708).

Almost surely, 2^36737521 is an apocalyptic number.

It is an amenable number.

36737521 is a deficient number, since it is larger than the sum of its proper divisors (13311).

36737521 is an equidigital number, since it uses as much as digits as its factorization.

36737521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13310.

The product of its digits is 26460, while the sum is 34.

The square root of 36737521 is about 6061.1484885292. The cubic root of 36737521 is about 332.4323521149.

The spelling of 36737521 in words is "thirty-six million, seven hundred thirty-seven thousand, five hundred twenty-one".