2154124253 has 2 divisors, whose sum is σ = 2154124254. Its totient is φ = 2154124252.

The previous prime is 2154124237. The next prime is 2154124261. The reversal of 2154124253 is 3524214512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1632321604 + 521802649 = 40402^2 + 22843^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154124253 - 2⁴ = 2154124237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154124153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077062126 + 1077062127.

It is an arithmetic number, because the mean of its divisors is an integer number (1077062127).

Almost surely, 2^2154124253 is an apocalyptic number.

It is an amenable number.

2154124253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154124253 is an equidigital number, since it uses as much as digits as its factorization.

2154124253 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2154124253 is about 46412.5441341024. The cubic root of 2154124253 is about 1291.4876279980.

Adding to 2154124253 its reverse (3524214512), we get a palindrome (5678338765).

The spelling of 2154124253 in words is "two billion, one hundred fifty-four million, one hundred twenty-four thousand, two hundred fifty-three".