365666537 has 2 divisors, whose sum is σ = 365666538. Its totient is φ = 365666536.

The previous prime is 365666527. The next prime is 365666593. The reversal of 365666537 is 735666563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 365153881 + 512656 = 19109^2 + 716^2 .

It is a cyclic number.

It is not a de Polignac number, because 365666537 - 2¹⁸ = 365404393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 365666491 and 365666500.

It is not a weakly prime, because it can be changed into another prime (365666507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182833268 + 182833269.

It is an arithmetic number, because the mean of its divisors is an integer number (182833269).

Almost surely, 2^365666537 is an apocalyptic number.

It is an amenable number.

365666537 is a deficient number, since it is larger than the sum of its proper divisors (1).

365666537 is an equidigital number, since it uses as much as digits as its factorization.

365666537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 47.

The square root of 365666537 is about 19122.4092885808. The cubic root of 365666537 is about 715.0917038881.

The spelling of 365666537 in words is "three hundred sixty-five million, six hundred sixty-six thousand, five hundred thirty-seven".