245302144 has 16 divisors (see below), whose sum is σ = 488688120. Its totient is φ = 122651008.

The previous prime is 245302121. The next prime is 245302147. The reversal of 245302144 is 441203542.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245302147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 958084 + ... + 958339.

Almost surely, 2^245302144 is an apocalyptic number.

It is an amenable number.

245302144 is a deficient number, since it is larger than the sum of its proper divisors (243385976).

245302144 is an equidigital number, since it uses as much as digits as its factorization.

245302144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916437 (or 1916425 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 245302144 is about 15662.1245046769. The cubic root of 245302144 is about 625.9895951752.

Adding to 245302144 its reverse (441203542), we get a palindrome (686505686).

The spelling of 245302144 in words is "two hundred forty-five million, three hundred two thousand, one hundred forty-four".