54145129 has 2 divisors, whose sum is σ = 54145130. Its totient is φ = 54145128.

The previous prime is 54145123. The next prime is 54145139. The reversal of 54145129 is 92154145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45589504 + 8555625 = 6752^2 + 2925^2 .

It is a cyclic number.

It is not a de Polignac number, because 54145129 - 2³ = 54145121 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54145129.

It is not a weakly prime, because it can be changed into another prime (54145121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27072564 + 27072565.

It is an arithmetic number, because the mean of its divisors is an integer number (27072565).

Almost surely, 2^54145129 is an apocalyptic number.

It is an amenable number.

54145129 is a deficient number, since it is larger than the sum of its proper divisors (1).

54145129 is an equidigital number, since it uses as much as digits as its factorization.

54145129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 31.

The square root of 54145129 is about 7358.3373801423. The cubic root of 54145129 is about 378.3146251862.

The spelling of 54145129 in words is "fifty-four million, one hundred forty-five thousand, one hundred twenty-nine".