245140455 has 32 divisors (see below), whose sum is σ = 452390400. Its totient is φ = 111030912.

The previous prime is 245140453. The next prime is 245140477. The reversal of 245140455 is 554041542.

It is not a de Polignac number, because 245140455 - 2¹ = 245140453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245140453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 736 + ... + 22154.

It is an arithmetic number, because the mean of its divisors is an integer number (14137200).

Almost surely, 2^245140455 is an apocalyptic number.

245140455 is a deficient number, since it is larger than the sum of its proper divisors (207249945).

245140455 is a wasteful number, since it uses less digits than its factorization.

245140455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21543.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 245140455 is about 15656.9618700436. The cubic root of 245140455 is about 625.8520262210.

Adding to 245140455 its reverse (554041542), we get a palindrome (799181997).

The spelling of 245140455 in words is "two hundred forty-five million, one hundred forty thousand, four hundred fifty-five".