1248439265 has 8 divisors (see below), whose sum is σ = 1502082240. Its totient is φ = 996114672.

The previous prime is 1248439249. The next prime is 1248439273. The reversal of 1248439265 is 5629348421.

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 1248439265 - 2⁴ = 1248439249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327509 + ... + 331298.

It is an arithmetic number, because the mean of its divisors is an integer number (187760280).

Almost surely, 2^1248439265 is an apocalyptic number.

It is an amenable number.

1248439265 is a deficient number, since it is larger than the sum of its proper divisors (253642975).

1248439265 is an equidigital number, since it uses as much as digits as its factorization.

1248439265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659191.

The product of its digits is 414720, while the sum is 44.

The square root of 1248439265 is about 35333.2600392322. The cubic root of 1248439265 is about 1076.7688247416.

The spelling of 1248439265 in words is "one billion, two hundred forty-eight million, four hundred thirty-nine thousand, two hundred sixty-five".