245144121 has 16 divisors (see below), whose sum is σ = 332004480. Its totient is φ = 160876800.

The previous prime is 245144111. The next prime is 245144167. The reversal of 245144121 is 121441542.

It is not a de Polignac number, because 245144121 - 2⁹ = 245143609 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 245144091 and 245144100.

It is not an unprimeable number, because it can be changed into a prime (245144111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48795 + ... + 53583.

It is an arithmetic number, because the mean of its divisors is an integer number (20750280).

Almost surely, 2^245144121 is an apocalyptic number.

It is an amenable number.

245144121 is a deficient number, since it is larger than the sum of its proper divisors (86860359).

245144121 is a wasteful number, since it uses less digits than its factorization.

245144121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056.

The product of its digits is 1280, while the sum is 24.

The square root of 245144121 is about 15657.0789421271. The cubic root of 245144121 is about 625.8551460135.

Adding to 245144121 its reverse (121441542), we get a palindrome (366585663).

It can be divided in two parts, 2451 and 44121, that multiplied together give a triangular number (108140571 = T₁₄₇₀₆).

The spelling of 245144121 in words is "two hundred forty-five million, one hundred forty-four thousand, one hundred twenty-one".