245345453 has 2 divisors, whose sum is σ = 245345454. Its totient is φ = 245345452.

The previous prime is 245345449. The next prime is 245345473. The reversal of 245345453 is 354543542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229007689 + 16337764 = 15133^2 + 4042^2 .

It is a cyclic number.

It is not a de Polignac number, because 245345453 - 2² = 245345449 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245345473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122672726 + 122672727.

It is an arithmetic number, because the mean of its divisors is an integer number (122672727).

Almost surely, 2^245345453 is an apocalyptic number.

It is an amenable number.

245345453 is a deficient number, since it is larger than the sum of its proper divisors (1).

245345453 is an equidigital number, since it uses as much as digits as its factorization.

245345453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 35.

The square root of 245345453 is about 15663.5070466355. The cubic root of 245345453 is about 626.0264332661.

Adding to 245345453 its reverse (354543542), we get a palindrome (599888995).

The spelling of 245345453 in words is "two hundred forty-five million, three hundred forty-five thousand, four hundred fifty-three".