4550129 has 4 divisors (see below), whose sum is σ = 4707060. Its totient is φ = 4393200.

The previous prime is 4550111. The next prime is 4550137. The reversal of 4550129 is 9210554.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1392400 + 3157729 = 1180^2 + 1777^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4550129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4550098 and 4550107.

It is not an unprimeable number, because it can be changed into a prime (4550179) 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 in 3 ways as a sum of consecutive naturals, for example, 78422 + ... + 78479.

It is an arithmetic number, because the mean of its divisors is an integer number (1176765).

Almost surely, 2^4550129 is an apocalyptic number.

It is an amenable number.

4550129 is a deficient number, since it is larger than the sum of its proper divisors (156931).

4550129 is a wasteful number, since it uses less digits than its factorization.

4550129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156930.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 4550129 is about 2133.1031386222. The cubic root of 4550129 is about 165.7071456283.

The spelling of 4550129 in words is "four million, five hundred fifty thousand, one hundred twenty-nine".