245716123 has 2 divisors, whose sum is σ = 245716124. Its totient is φ = 245716122.

The previous prime is 245716103. The next prime is 245716169. The reversal of 245716123 is 321617542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245716123 - 2⁹ = 245715611 is a prime.

It is a super-2 number, since 2×245716123² = 120752826204302258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245716103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122858061 + 122858062.

It is an arithmetic number, because the mean of its divisors is an integer number (122858062).

Almost surely, 2^245716123 is an apocalyptic number.

245716123 is a deficient number, since it is larger than the sum of its proper divisors (1).

245716123 is an equidigital number, since it uses as much as digits as its factorization.

245716123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 245716123 is about 15675.3348608570. The cubic root of 245716123 is about 626.3415433181.

The spelling of 245716123 in words is "two hundred forty-five million, seven hundred sixteen thousand, one hundred twenty-three".