245101 has 4 divisors (see below), whose sum is σ = 247104. Its totient is φ = 243100.

The previous prime is 245087. The next prime is 245107. The reversal of 245101 is 101542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245101 - 2⁹ = 244589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245107) 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, 805 + ... + 1066.

It is an arithmetic number, because the mean of its divisors is an integer number (61776).

2²⁴⁵¹⁰¹ is an apocalyptic number.

It is an amenable number.

245101 is a deficient number, since it is larger than the sum of its proper divisors (2003).

245101 is a wasteful number, since it uses less digits than its factorization.

245101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 245101 is about 495.0767617249. The cubic root of 245101 is about 62.5818447761.

Adding to 245101 its reverse (101542), we get a palindrome (346643).

The spelling of 245101 in words is "two hundred forty-five thousand, one hundred one".