245828491 has 2 divisors, whose sum is σ = 245828492. Its totient is φ = 245828490.

The previous prime is 245828477. The next prime is 245828501. The reversal of 245828491 is 194828542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245828491 - 2⁵ = 245828459 is a prime.

It is not a weakly prime, because it can be changed into another prime (245828411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122914245 + 122914246.

It is an arithmetic number, because the mean of its divisors is an integer number (122914246).

Almost surely, 2^245828491 is an apocalyptic number.

245828491 is a deficient number, since it is larger than the sum of its proper divisors (1).

245828491 is an equidigital number, since it uses as much as digits as its factorization.

245828491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 43.

The square root of 245828491 is about 15678.9186808275. The cubic root of 245828491 is about 626.4370058107.

The spelling of 245828491 in words is "two hundred forty-five million, eight hundred twenty-eight thousand, four hundred ninety-one".