245532121 has 16 divisors (see below), whose sum is σ = 258306048. Its totient is φ = 233110800.

The previous prime is 245532113. The next prime is 245532127. The reversal of 245532121 is 121235542.

245532121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 245532121 - 2³ = 245532113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245532127) 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, 417990 + ... + 418576.

It is an arithmetic number, because the mean of its divisors is an integer number (16144128).

Almost surely, 2^245532121 is an apocalyptic number.

It is an amenable number.

245532121 is a deficient number, since it is larger than the sum of its proper divisors (12773927).

245532121 is a wasteful number, since it uses less digits than its factorization.

245532121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852.

The product of its digits is 2400, while the sum is 25.

The square root of 245532121 is about 15669.4646047655. The cubic root of 245532121 is about 626.1851611284.

Adding to 245532121 its reverse (121235542), we get a palindrome (366767663).

The spelling of 245532121 in words is "two hundred forty-five million, five hundred thirty-two thousand, one hundred twenty-one".