635245 has 16 divisors (see below), whose sum is σ = 851760. Its totient is φ = 451584.

The previous prime is 635207. The next prime is 635249. The reversal of 635245 is 542536.

It can be written as a sum of positive squares in 8 ways, for example, as 84681 + 550564 = 291^2 + 742^2 .

It is a cyclic number.

It is not a de Polignac number, because 635245 - 2¹¹ = 633197 is a prime.

It is a d-powerful number, because it can be written as 6⁴ + 3¹¹ + 2¹⁶ + 5⁴ + 4² + 5⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1717 + ... + 2053.

It is an arithmetic number, because the mean of its divisors is an integer number (53235).

2⁶³⁵²⁴⁵ is an apocalyptic number.

635245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

635245 is a deficient number, since it is larger than the sum of its proper divisors (216515).

635245 is a wasteful number, since it uses less digits than its factorization.

635245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its digits is 3600, while the sum is 25.

The square root of 635245 is about 797.0225843726. The cubic root of 635245 is about 85.9634331652.

The spelling of 635245 in words is "six hundred thirty-five thousand, two hundred forty-five".