245515453 has 2 divisors, whose sum is σ = 245515454. Its totient is φ = 245515452.

The previous prime is 245515447. The next prime is 245515471. The reversal of 245515453 is 354515542.

245515453 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., 210917529 + 34597924 = 14523^2 + 5882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245515453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245515553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122757726 + 122757727.

It is an arithmetic number, because the mean of its divisors is an integer number (122757727).

Almost surely, 2^245515453 is an apocalyptic number.

It is an amenable number.

245515453 is a deficient number, since it is larger than the sum of its proper divisors (1).

245515453 is an equidigital number, since it uses as much as digits as its factorization.

245515453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60000, while the sum is 34.

The square root of 245515453 is about 15668.9327332783. The cubic root of 245515453 is about 626.1709912371.

The spelling of 245515453 in words is "two hundred forty-five million, five hundred fifteen thousand, four hundred fifty-three".