2161423114 has 12 divisors (see below), whose sum is σ = 3389227506. Its totient is φ = 1033723592.

The previous prime is 2161423111. The next prime is 2161423123. The reversal of 2161423114 is 4113241612.

It can be written as a sum of positive squares in only one way, i.e., 1851839089 + 309584025 = 43033^2 + 17595^2 .

It is not an unprimeable number, because it can be changed into a prime (2161423111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1020409 + ... + 1022524.

Almost surely, 2^2161423114 is an apocalyptic number.

2161423114 is a deficient number, since it is larger than the sum of its proper divisors (1227804392).

2161423114 is a wasteful number, since it uses less digits than its factorization.

2161423114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042981 (or 2042958 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 2161423114 is about 46491.1079024796. The cubic root of 2161423114 is about 1292.9446411553.

Adding to 2161423114 its reverse (4113241612), we get a palindrome (6274664726).

The spelling of 2161423114 in words is "two billion, one hundred sixty-one million, four hundred twenty-three thousand, one hundred fourteen".