245653783 has 2 divisors, whose sum is σ = 245653784. Its totient is φ = 245653782.

The previous prime is 245653729. The next prime is 245653787. The reversal of 245653783 is 387356542.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245653783 is a prime.

It is a super-2 number, since 2×245653783² = 120691562204422178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245653787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122826891 + 122826892.

It is an arithmetic number, because the mean of its divisors is an integer number (122826892).

Almost surely, 2^245653783 is an apocalyptic number.

245653783 is a deficient number, since it is larger than the sum of its proper divisors (1).

245653783 is an equidigital number, since it uses as much as digits as its factorization.

245653783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 43.

The square root of 245653783 is about 15673.3462604512. The cubic root of 245653783 is about 626.2885696754.

The spelling of 245653783 in words is "two hundred forty-five million, six hundred fifty-three thousand, seven hundred eighty-three".