1250123159 has 2 divisors, whose sum is σ = 1250123160. Its totient is φ = 1250123158.

The previous prime is 1250123141. The next prime is 1250123207. The reversal of 1250123159 is 9513210521.

It is a weak prime.

It is an emirp because it is prime and its reverse (9513210521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1250123159 - 2²⁸ = 981687703 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1250123129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625061579 + 625061580.

It is an arithmetic number, because the mean of its divisors is an integer number (625061580).

Almost surely, 2^1250123159 is an apocalyptic number.

1250123159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250123159 is an equidigital number, since it uses as much as digits as its factorization.

1250123159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 1250123159 is about 35357.0807477088. The cubic root of 1250123159 is about 1077.2527222570.

The spelling of 1250123159 in words is "one billion, two hundred fifty million, one hundred twenty-three thousand, one hundred fifty-nine".