36975509 has 2 divisors, whose sum is σ = 36975510. Its totient is φ = 36975508.

The previous prime is 36975487. The next prime is 36975517. The reversal of 36975509 is 90557963.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33814225 + 3161284 = 5815^2 + 1778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36975509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 36975509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36975109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18487754 + 18487755.

It is an arithmetic number, because the mean of its divisors is an integer number (18487755).

Almost surely, 2^36975509 is an apocalyptic number.

It is an amenable number.

36975509 is a deficient number, since it is larger than the sum of its proper divisors (1).

36975509 is an equidigital number, since it uses as much as digits as its factorization.

36975509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 255150, while the sum is 44.

The square root of 36975509 is about 6080.7490492537. The cubic root of 36975509 is about 333.1486469139.

The spelling of 36975509 in words is "thirty-six million, nine hundred seventy-five thousand, five hundred nine".