245324251 has 2 divisors, whose sum is σ = 245324252. Its totient is φ = 245324250.

The previous prime is 245324239. The next prime is 245324327. The reversal of 245324251 is 152423542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245324251 - 2¹³ = 245316059 is a prime.

It is a super-2 number, since 2×245324251² = 120367976257422002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245324351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122662125 + 122662126.

It is an arithmetic number, because the mean of its divisors is an integer number (122662126).

Almost surely, 2^245324251 is an apocalyptic number.

245324251 is a deficient number, since it is larger than the sum of its proper divisors (1).

245324251 is an equidigital number, since it uses as much as digits as its factorization.

245324251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 28.

The square root of 245324251 is about 15662.8302359439. The cubic root of 245324251 is about 626.0083996532.

Adding to 245324251 its reverse (152423542), we get a palindrome (397747793).

The spelling of 245324251 in words is "two hundred forty-five million, three hundred twenty-four thousand, two hundred fifty-one".