1500128879 has 2 divisors, whose sum is σ = 1500128880. Its totient is φ = 1500128878.

The previous prime is 1500128873. The next prime is 1500128881. The reversal of 1500128879 is 9788210051.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1500128879 - 2¹² = 1500124783 is a prime.

Together with 1500128881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1500128873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750064439 + 750064440.

It is an arithmetic number, because the mean of its divisors is an integer number (750064440).

Almost surely, 2^1500128879 is an apocalyptic number.

1500128879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1500128879 is an equidigital number, since it uses as much as digits as its factorization.

1500128879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 1500128879 is about 38731.4972470727. The cubic root of 1500128879 is about 1144.7470259760.

The spelling of 1500128879 in words is "one billion, five hundred million, one hundred twenty-eight thousand, eight hundred seventy-nine".