245314451 has 4 divisors (see below), whose sum is σ = 253773600. Its totient is φ = 236855304.

The previous prime is 245314427. The next prime is 245314457. The reversal of 245314451 is 154413542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245314451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 8459119 = 245314451 / (2 + 4 + 5 + 3 + 1 + 4 + 4 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245314457) 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 3 ways as a sum of consecutive naturals, for example, 4229531 + ... + 4229588.

It is an arithmetic number, because the mean of its divisors is an integer number (63443400).

Almost surely, 2^245314451 is an apocalyptic number.

245314451 is a deficient number, since it is larger than the sum of its proper divisors (8459149).

245314451 is an equidigital number, since it uses as much as digits as its factorization.

245314451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8459148.

The product of its digits is 9600, while the sum is 29.

The square root of 245314451 is about 15662.5173902537. The cubic root of 245314451 is about 626.0000637957. Note that the first 4 decimals are identical.

Adding to 245314451 its reverse (154413542), we get a palindrome (399727993).

Subtracting from 245314451 its reverse (154413542), we obtain a palindrome (90900909).

It can be divided in two parts, 24531 and 4451, that added together give a palindrome (28982).

The spelling of 245314451 in words is "two hundred forty-five million, three hundred fourteen thousand, four hundred fifty-one".