245061 has 12 divisors (see below), whose sum is σ = 359788. Its totient is φ = 160704.

The previous prime is 245039. The next prime is 245071. The reversal of 245061 is 160542.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 136161 + 108900 = 369^2 + 330^2 .

It is not a de Polignac number, because 245061 - 2⁵ = 245029 is a prime.

It is a Duffinian number.

245061 is a lucky number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245071) 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 11 ways as a sum of consecutive naturals, for example, 471 + ... + 843.

2²⁴⁵⁰⁶¹ is an apocalyptic number.

It is an amenable number.

245061 is a deficient number, since it is larger than the sum of its proper divisors (114727).

245061 is a wasteful number, since it uses less digits than its factorization.

245061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 245061 is about 495.0363623008. The cubic root of 245061 is about 62.5784401797.

The spelling of 245061 in words is "two hundred forty-five thousand, sixty-one".