2102144137 has 4 divisors (see below), whose sum is σ = 2146870656. Its totient is φ = 2057417620.

The previous prime is 2102144123. The next prime is 2102144147. The reversal of 2102144137 is 7314412012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2102144137 - 2²³ = 2093755529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102144147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22363189 + ... + 22363282.

It is an arithmetic number, because the mean of its divisors is an integer number (536717664).

Almost surely, 2^2102144137 is an apocalyptic number.

It is an amenable number.

2102144137 is a deficient number, since it is larger than the sum of its proper divisors (44726519).

2102144137 is an equidigital number, since it uses as much as digits as its factorization.

2102144137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44726518.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2102144137 is about 45849.1454336937. The cubic root of 2102144137 is about 1281.0148480378.

Adding to 2102144137 its reverse (7314412012), we get a palindrome (9416556149).

The spelling of 2102144137 in words is "two billion, one hundred two million, one hundred forty-four thousand, one hundred thirty-seven".