3646244137 has 2 divisors, whose sum is σ = 3646244138. Its totient is φ = 3646244136.

The previous prime is 3646244123. The next prime is 3646244179. The reversal of 3646244137 is 7314426463.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2681582656 + 964661481 = 51784^2 + 31059^2 .

It is a cyclic number.

It is not a de Polignac number, because 3646244137 - 2⁷ = 3646244009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3646244137.

It is not a weakly prime, because it can be changed into another prime (3646244237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1823122068 + 1823122069.

It is an arithmetic number, because the mean of its divisors is an integer number (1823122069).

Almost surely, 2^3646244137 is an apocalyptic number.

It is an amenable number.

3646244137 is a deficient number, since it is larger than the sum of its proper divisors (1).

3646244137 is an equidigital number, since it uses as much as digits as its factorization.

3646244137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 40.

The square root of 3646244137 is about 60384.1381241796. The cubic root of 3646244137 is about 1539.1534303908.

The spelling of 3646244137 in words is "three billion, six hundred forty-six million, two hundred forty-four thousand, one hundred thirty-seven".