259315123 has 2 divisors, whose sum is σ = 259315124. Its totient is φ = 259315122.

The previous prime is 259315099. The next prime is 259315139. The reversal of 259315123 is 321513952.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259315123 is a prime.

It is not a weakly prime, because it can be changed into another prime (259315163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129657561 + 129657562.

It is an arithmetic number, because the mean of its divisors is an integer number (129657562).

Almost surely, 2^259315123 is an apocalyptic number.

259315123 is a deficient number, since it is larger than the sum of its proper divisors (1).

259315123 is an equidigital number, since it uses as much as digits as its factorization.

259315123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 31.

The square root of 259315123 is about 16103.2643585082. The cubic root of 259315123 is about 637.6895229410.

The spelling of 259315123 in words is "two hundred fifty-nine million, three hundred fifteen thousand, one hundred twenty-three".