245243153 has 2 divisors, whose sum is σ = 245243154. Its totient is φ = 245243152.

The previous prime is 245243129. The next prime is 245243191. The reversal of 245243153 is 351342542.

It is a happy number.

245243153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238023184 + 7219969 = 15428^2 + 2687^2 .

It is a cyclic number.

It is not a de Polignac number, because 245243153 - 2¹⁶ = 245177617 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_13433267 and since 245243153 and 13433267 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (245243113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122621576 + 122621577.

It is an arithmetic number, because the mean of its divisors is an integer number (122621577).

Almost surely, 2^245243153 is an apocalyptic number.

It is an amenable number.

245243153 is a deficient number, since it is larger than the sum of its proper divisors (1).

245243153 is an equidigital number, since it uses as much as digits as its factorization.

245243153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 29.

The square root of 245243153 is about 15660.2411539542. The cubic root of 245243153 is about 625.9394111965.

Adding to 245243153 its reverse (351342542), we get a palindrome (596585695).

The spelling of 245243153 in words is "two hundred forty-five million, two hundred forty-three thousand, one hundred fifty-three".