245640883 has 2 divisors, whose sum is σ = 245640884. Its totient is φ = 245640882.

The previous prime is 245640877. The next prime is 245640893. The reversal of 245640883 is 388046542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245640883 - 2¹³ = 245632691 is a prime.

It is not a weakly prime, because it can be changed into another prime (245640823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122820441 + 122820442.

It is an arithmetic number, because the mean of its divisors is an integer number (122820442).

Almost surely, 2^245640883 is an apocalyptic number.

245640883 is a deficient number, since it is larger than the sum of its proper divisors (1).

245640883 is an equidigital number, since it uses as much as digits as its factorization.

245640883 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 245640883 is about 15672.9347283781. The cubic root of 245640883 is about 626.2776067341.

The spelling of 245640883 in words is "two hundred forty-five million, six hundred forty thousand, eight hundred eighty-three".