245121120 has 192 divisors, whose sum is σ = 895587840. Its totient is φ = 62498304.

The previous prime is 245121103. The next prime is 245121133. The reversal of 245121120 is 21121542.

245121120 is a `hidden beast` number, since 2 + 451 + 211 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 245121093 and 245121102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98127 + ... + 100593.

It is an arithmetic number, because the mean of its divisors is an integer number (4664520).

Almost surely, 2^245121120 is an apocalyptic number.

245121120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245121120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447793920).

245121120 is an abundant number, since it is smaller than the sum of its proper divisors (650466720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245121120 is a wasteful number, since it uses less digits than its factorization.

245121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514 (or 2500 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 245121120 is about 15656.3444009130. The cubic root of 245121120 is about 625.8355714813.

Adding to 245121120 its reverse (21121542), we get a palindrome (266242662).

The spelling of 245121120 in words is "two hundred forty-five million, one hundred twenty-one thousand, one hundred twenty".