36837509 has 2 divisors, whose sum is σ = 36837510. Its totient is φ = 36837508.

The previous prime is 36837503. The next prime is 36837527. The reversal of 36837509 is 90573863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36120100 + 717409 = 6010^2 + 847^2 .

It is an emirp because it is prime and its reverse (90573863) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36837509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36837503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18418754 + 18418755.

It is an arithmetic number, because the mean of its divisors is an integer number (18418755).

Almost surely, 2^36837509 is an apocalyptic number.

It is an amenable number.

36837509 is a deficient number, since it is larger than the sum of its proper divisors (1).

36837509 is an equidigital number, since it uses as much as digits as its factorization.

36837509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 36837509 is about 6069.3911556267. The cubic root of 36837509 is about 332.7336710847.

The spelling of 36837509 in words is "thirty-six million, eight hundred thirty-seven thousand, five hundred nine".