245241321 has 16 divisors (see below), whose sum is σ = 352498944. Its totient is φ = 150764544.

The previous prime is 245241287. The next prime is 245241323. The reversal of 245241321 is 123142542.

It is not a de Polignac number, because 245241321 - 2⁶ = 245241257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245241291 and 245241300.

It is not an unprimeable number, because it can be changed into a prime (245241323) 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, 44880 + ... + 50046.

It is an arithmetic number, because the mean of its divisors is an integer number (22031184).

Almost surely, 2^245241321 is an apocalyptic number.

It is an amenable number.

245241321 is a deficient number, since it is larger than the sum of its proper divisors (107257623).

245241321 is a wasteful number, since it uses less digits than its factorization.

245241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6400.

The product of its digits is 1920, while the sum is 24.

The square root of 245241321 is about 15660.1826617699. The cubic root of 245241321 is about 625.9378525748.

Adding to 245241321 its reverse (123142542), we get a palindrome (368383863).

The spelling of 245241321 in words is "two hundred forty-five million, two hundred forty-one thousand, three hundred twenty-one".