2154124697 has 2 divisors, whose sum is σ = 2154124698. Its totient is φ = 2154124696.

The previous prime is 2154124691. The next prime is 2154124699. The reversal of 2154124697 is 7964214512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2117932441 + 36192256 = 46021^2 + 6016^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154124697 - 2¹⁶ = 2154059161 is a prime.

Together with 2154124699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2154124691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077062348 + 1077062349.

It is an arithmetic number, because the mean of its divisors is an integer number (1077062349).

Almost surely, 2^2154124697 is an apocalyptic number.

It is an amenable number.

2154124697 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154124697 is an equidigital number, since it uses as much as digits as its factorization.

2154124697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 2154124697 is about 46412.5489172918. The cubic root of 2154124697 is about 1291.4877167302.

The spelling of 2154124697 in words is "two billion, one hundred fifty-four million, one hundred twenty-four thousand, six hundred ninety-seven".