245056619 has 2 divisors, whose sum is σ = 245056620. Its totient is φ = 245056618.

The previous prime is 245056607. The next prime is 245056681. The reversal of 245056619 is 916650542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245056619 - 2⁸ = 245056363 is a prime.

It is a super-2 number, since 2×245056619² = 120105493031422322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245016619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122528309 + 122528310.

It is an arithmetic number, because the mean of its divisors is an integer number (122528310).

Almost surely, 2^245056619 is an apocalyptic number.

245056619 is a deficient number, since it is larger than the sum of its proper divisors (1).

245056619 is an equidigital number, since it uses as much as digits as its factorization.

245056619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 245056619 is about 15654.2843656297. The cubic root of 245056619 is about 625.7806726876.

The spelling of 245056619 in words is "two hundred forty-five million, fifty-six thousand, six hundred nineteen".