245945983 has 2 divisors, whose sum is σ = 245945984. Its totient is φ = 245945982.

The previous prime is 245945977. The next prime is 245946007. The reversal of 245945983 is 389549542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245945983 - 2²⁵ = 212391551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245945933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122972991 + 122972992.

It is an arithmetic number, because the mean of its divisors is an integer number (122972992).

Almost surely, 2^245945983 is an apocalyptic number.

245945983 is a deficient number, since it is larger than the sum of its proper divisors (1).

245945983 is an equidigital number, since it uses as much as digits as its factorization.

245945983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 49.

The square root of 245945983 is about 15682.6650477526. The cubic root of 245945983 is about 626.5367903037.

It can be divided in two parts, 2459459 and 83, that added together give a palindrome (2459542).

The spelling of 245945983 in words is "two hundred forty-five million, nine hundred forty-five thousand, nine hundred eighty-three".