2159405653 has 2 divisors, whose sum is σ = 2159405654. Its totient is φ = 2159405652.

The previous prime is 2159405629. The next prime is 2159405683. The reversal of 2159405653 is 3565049512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1270352164 + 889053489 = 35642^2 + 29817^2 .

It is a cyclic number.

It is not a de Polignac number, because 2159405653 - 2⁹ = 2159405141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2159405683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1079702826 + 1079702827.

It is an arithmetic number, because the mean of its divisors is an integer number (1079702827).

Almost surely, 2^2159405653 is an apocalyptic number.

It is an amenable number.

2159405653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2159405653 is an equidigital number, since it uses as much as digits as its factorization.

2159405653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 2159405653 is about 46469.4055589266. The cubic root of 2159405653 is about 1292.5422400137.

The spelling of 2159405653 in words is "two billion, one hundred fifty-nine million, four hundred five thousand, six hundred fifty-three".