1248001085 has 8 divisors (see below), whose sum is σ = 1502932536. Its totient is φ = 994846720.

The previous prime is 1248001049. The next prime is 1248001087. The reversal of 1248001085 is 5801008421.

It can be written as a sum of positive squares in 4 ways, for example, as 37100281 + 1210900804 = 6091^2 + 34798^2 .

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

It is not a de Polignac number, because 1248001085 - 2²⁶ = 1180892221 is a prime.

It is a super-2 number, since 2×1248001085² = 3115013416322354450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248001087) 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, 442724 + ... + 445533.

It is an arithmetic number, because the mean of its divisors is an integer number (187866567).

Almost surely, 2^1248001085 is an apocalyptic number.

It is an amenable number.

1248001085 is a deficient number, since it is larger than the sum of its proper divisors (254931451).

1248001085 is an equidigital number, since it uses as much as digits as its factorization.

1248001085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888543.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 1248001085 is about 35327.0588218153. The cubic root of 1248001085 is about 1076.6428344251.

The spelling of 1248001085 in words is "one billion, two hundred forty-eight million, one thousand, eighty-five".