1248122487 has 8 divisors (see below), whose sum is σ = 1664343280. Its totient is φ = 831991680.

The previous prime is 1248122467. The next prime is 1248122497. The reversal of 1248122487 is 7842218421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1248122487 - 2¹⁰ = 1248121463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248122437) 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 in 7 ways as a sum of consecutive naturals, for example, 23037 + ... + 55017.

It is an arithmetic number, because the mean of its divisors is an integer number (208042910).

Almost surely, 2^1248122487 is an apocalyptic number.

1248122487 is a deficient number, since it is larger than the sum of its proper divisors (416220793).

1248122487 is a wasteful number, since it uses less digits than its factorization.

1248122487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44993.

The product of its digits is 57344, while the sum is 39.

The square root of 1248122487 is about 35328.7770379899. Note that the first 3 decimals coincide. The cubic root of 1248122487 is about 1076.6777442119.

The spelling of 1248122487 in words is "one billion, two hundred forty-eight million, one hundred twenty-two thousand, four hundred eighty-seven".