3656137 has 2 divisors, whose sum is σ = 3656138. Its totient is φ = 3656136.

The previous prime is 3656129. The next prime is 3656141. The reversal of 3656137 is 7316563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2157961 + 1498176 = 1469^2 + 1224^2 .

It is a cyclic number.

It is not a de Polignac number, because 3656137 - 2³ = 3656129 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3656099 and 3656108.

It is not a weakly prime, because it can be changed into another prime (3656437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828068 + 1828069.

It is an arithmetic number, because the mean of its divisors is an integer number (1828069).

Almost surely, 2^3656137 is an apocalyptic number.

It is an amenable number.

3656137 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656137 is an equidigital number, since it uses as much as digits as its factorization.

3656137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 31.

The square root of 3656137 is about 1912.1027692046. The cubic root of 3656137 is about 154.0544165933.

The spelling of 3656137 in words is "three million, six hundred fifty-six thousand, one hundred thirty-seven".