54237121 has 2 divisors, whose sum is σ = 54237122. Its totient is φ = 54237120.

The previous prime is 54237119. The next prime is 54237173. The reversal of 54237121 is 12173245.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44408896 + 9828225 = 6664^2 + 3135^2 .

It is a cyclic number.

It is not a de Polignac number, because 54237121 - 2¹ = 54237119 is a prime.

Together with 54237119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (54237721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27118560 + 27118561.

It is an arithmetic number, because the mean of its divisors is an integer number (27118561).

Almost surely, 2^54237121 is an apocalyptic number.

It is an amenable number.

54237121 is a deficient number, since it is larger than the sum of its proper divisors (1).

54237121 is an equidigital number, since it uses as much as digits as its factorization.

54237121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 54237121 is about 7364.5855959450. The cubic root of 54237121 is about 378.5287548095.

It can be divided in two parts, 5423 and 7121, that added together give a square (12544 = 112²).

The spelling of 54237121 in words is "fifty-four million, two hundred thirty-seven thousand, one hundred twenty-one".