2361509 has 2 divisors, whose sum is σ = 2361510. Its totient is φ = 2361508.

The previous prime is 2361503. The next prime is 2361539. The reversal of 2361509 is 9051632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1216609 + 1144900 = 1103^2 + 1070^2 .

It is a cyclic number.

It is not a de Polignac number, because 2361509 - 2⁸ = 2361253 is a prime.

It is a Chen prime.

It is equal to p₁₇₃₆₆₃ and since 2361509 and 173663 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2361503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1180754 + 1180755.

It is an arithmetic number, because the mean of its divisors is an integer number (1180755).

2^2361509 is an apocalyptic number.

It is an amenable number.

2361509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2361509 is an equidigital number, since it uses as much as digits as its factorization.

2361509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 2361509 is about 1536.7202087563. The cubic root of 2361509 is about 133.1669751624.

The spelling of 2361509 in words is "two million, three hundred sixty-one thousand, five hundred nine".