2105440153 has 4 divisors (see below), whose sum is σ = 2150236800. Its totient is φ = 2060643508.

The previous prime is 2105440133. The next prime is 2105440187. The reversal of 2105440153 is 3510445012.

It is a happy number.

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 2105440153 - 2⁵ = 2105440121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105440133) 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, 22398253 + ... + 22398346.

It is an arithmetic number, because the mean of its divisors is an integer number (537559200).

Almost surely, 2^2105440153 is an apocalyptic number.

It is an amenable number.

2105440153 is a deficient number, since it is larger than the sum of its proper divisors (44796647).

2105440153 is an equidigital number, since it uses as much as digits as its factorization.

2105440153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44796646.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2105440153 is about 45885.0754930184. The cubic root of 2105440153 is about 1281.6840125275.

Adding to 2105440153 its reverse (3510445012), we get a palindrome (5615885165).

The spelling of 2105440153 in words is "two billion, one hundred five million, four hundred forty thousand, one hundred fifty-three".