1248491105 has 8 divisors (see below), whose sum is σ = 1498401600. Its totient is φ = 998651376.

The previous prime is 1248491099. The next prime is 1248491107. The reversal of 1248491105 is 5011948421.

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

It is a cyclic number.

It is not a de Polignac number, because 1248491105 - 2²⁰ = 1247442529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1248491107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35876 + ... + 61514.

It is an arithmetic number, because the mean of its divisors is an integer number (187300200).

Almost surely, 2^1248491105 is an apocalyptic number.

It is an amenable number.

1248491105 is a deficient number, since it is larger than the sum of its proper divisors (249910495).

1248491105 is an equidigital number, since it uses as much as digits as its factorization.

1248491105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35383.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1248491105 is about 35333.9936180444. The cubic root of 1248491105 is about 1076.7837283964.

The spelling of 1248491105 in words is "one billion, two hundred forty-eight million, four hundred ninety-one thousand, one hundred five".