245652121 has 32 divisors (see below), whose sum is σ = 317076480. Its totient is φ = 186753600.

The previous prime is 245652109. The next prime is 245652181. The reversal of 245652121 is 121256542.

245652121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245652121 - 2⁵ = 245652089 is a prime.

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 245652121.

It is not an unprimeable number, because it can be changed into a prime (245652181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60526 + ... + 64456.

It is an arithmetic number, because the mean of its divisors is an integer number (9908640).

Almost surely, 2^245652121 is an apocalyptic number.

It is an amenable number.

245652121 is a deficient number, since it is larger than the sum of its proper divisors (71424359).

245652121 is a wasteful number, since it uses less digits than its factorization.

245652121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997.

The product of its digits is 4800, while the sum is 28.

The square root of 245652121 is about 15673.2932404138. The cubic root of 245652121 is about 626.2871572621.

It can be divided in two parts, 2456521 and 21, that added together give a palindrome (2456542).

The spelling of 245652121 in words is "two hundred forty-five million, six hundred fifty-two thousand, one hundred twenty-one".