245405144 has 16 divisors (see below), whose sum is σ = 461086800. Its totient is φ = 122448672.

The previous prime is 245405143. The next prime is 245405177. The reversal of 245405144 is 441504542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245405143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27599 + ... + 35390.

It is an arithmetic number, because the mean of its divisors is an integer number (28817925).

Almost surely, 2^245405144 is an apocalyptic number.

It is an amenable number.

245405144 is a deficient number, since it is larger than the sum of its proper divisors (215681656).

245405144 is a wasteful number, since it uses less digits than its factorization.

245405144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63482 (or 63478 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 245405144 is about 15665.4123469508. The cubic root of 245405144 is about 626.0771985759.

Adding to 245405144 its reverse (441504542), we get a palindrome (686909686).

The spelling of 245405144 in words is "two hundred forty-five million, four hundred five thousand, one hundred forty-four".