654125 has 8 divisors (see below), whose sum is σ = 816504. Its totient is φ = 523200.

The previous prime is 654107. The next prime is 654127. The reversal of 654125 is 521456.

It can be written as a sum of positive squares in 4 ways, for example, as 4489 + 649636 = 67^2 + 806^2 .

It is a de Polignac number, because none of the positive numbers 2^k-654125 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 654125.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 654125.

It is not an unprimeable number, because it can be changed into a prime (654127) 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 7 ways as a sum of consecutive naturals, for example, 2492 + ... + 2741.

It is an arithmetic number, because the mean of its divisors is an integer number (102063).

2⁶⁵⁴¹²⁵ is an apocalyptic number.

It is an amenable number.

654125 is a deficient number, since it is larger than the sum of its proper divisors (162379).

654125 is an equidigital number, since it uses as much as digits as its factorization.

654125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5248 (or 5238 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 654125 is about 808.7799453498. The cubic root of 654125 is about 86.8067671535.

The spelling of 654125 in words is "six hundred fifty-four thousand, one hundred twenty-five".