2154242153 has 4 divisors (see below), whose sum is σ = 2461991040. Its totient is φ = 1846493268.

The previous prime is 2154242147. The next prime is 2154242171. The reversal of 2154242153 is 3512424512.

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 2154242153 - 2⁴ = 2154242137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154242113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153874433 + ... + 153874446.

It is an arithmetic number, because the mean of its divisors is an integer number (615497760).

Almost surely, 2^2154242153 is an apocalyptic number.

It is an amenable number.

2154242153 is a deficient number, since it is larger than the sum of its proper divisors (307748887).

2154242153 is an equidigital number, since it uses as much as digits as its factorization.

2154242153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307748886.

The product of its digits is 9600, while the sum is 29.

The square root of 2154242153 is about 46413.8142474846. The cubic root of 2154242153 is about 1291.5111895626.

Adding to 2154242153 its reverse (3512424512), we get a palindrome (5666666665).

The spelling of 2154242153 in words is "two billion, one hundred fifty-four million, two hundred forty-two thousand, one hundred fifty-three".