2159447101 has 12 divisors (see below), whose sum is σ = 2565459648. Its totient is φ = 1811570712.

The previous prime is 2159447093. The next prime is 2159447111. The reversal of 2159447101 is 1017449512.

It is not a de Polignac number, because 2159447101 - 2³ = 2159447093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159447111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 466531 + ... + 471136.

It is an arithmetic number, because the mean of its divisors is an integer number (213788304).

Almost surely, 2^2159447101 is an apocalyptic number.

It is an amenable number.

2159447101 is a deficient number, since it is larger than the sum of its proper divisors (406012547).

2159447101 is an equidigital number, since it uses as much as digits as its factorization.

2159447101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937728 (or 937721 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 2159447101 is about 46469.8515276303. The cubic root of 2159447101 is about 1292.5505097194.

The spelling of 2159447101 in words is "two billion, one hundred fifty-nine million, four hundred forty-seven thousand, one hundred one".