3645623143 has 2 divisors, whose sum is σ = 3645623144. Its totient is φ = 3645623142.

The previous prime is 3645623129. The next prime is 3645623161. The reversal of 3645623143 is 3413265463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3645623143 - 2²⁵ = 3612068711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3645623743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822811571 + 1822811572.

It is an arithmetic number, because the mean of its divisors is an integer number (1822811572).

Almost surely, 2^3645623143 is an apocalyptic number.

3645623143 is a deficient number, since it is larger than the sum of its proper divisors (1).

3645623143 is an equidigital number, since it uses as much as digits as its factorization.

3645623143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 37.

The square root of 3645623143 is about 60378.9958760495. The cubic root of 3645623143 is about 1539.0660473856.

The spelling of 3645623143 in words is "three billion, six hundred forty-five million, six hundred twenty-three thousand, one hundred forty-three".