245131140 has 24 divisors (see below), whose sum is σ = 686367360. Its totient is φ = 65368288.

The previous prime is 245131127. The next prime is 245131151. The reversal of 245131140 is 41131542.

245131140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2042700 + ... + 2042819.

It is an arithmetic number, because the mean of its divisors is an integer number (28598640).

Almost surely, 2^245131140 is an apocalyptic number.

245131140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245131140 is an abundant number, since it is smaller than the sum of its proper divisors (441236220).

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

245131140 is a wasteful number, since it uses less digits than its factorization.

245131140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085531 (or 4085529 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 245131140 is about 15656.6643957134. The cubic root of 245131140 is about 625.8440989486.

Adding to 245131140 its reverse (41131542), we get a palindrome (286262682).

The spelling of 245131140 in words is "two hundred forty-five million, one hundred thirty-one thousand, one hundred forty".