1248667655 has 8 divisors (see below), whose sum is σ = 1501038000. Its totient is φ = 997176256.

The previous prime is 1248667643. The next prime is 1248667727. The reversal of 1248667655 is 5567668421.

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 1248667655 - 2⁴ = 1248667639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216605 + ... + 222294.

It is an arithmetic number, because the mean of its divisors is an integer number (187629750).

Almost surely, 2^1248667655 is an apocalyptic number.

1248667655 is a deficient number, since it is larger than the sum of its proper divisors (252370345).

1248667655 is an equidigital number, since it uses as much as digits as its factorization.

1248667655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439473.

The product of its digits is 2419200, while the sum is 50.

The square root of 1248667655 is about 35336.4918320990. The cubic root of 1248667655 is about 1076.8344822507.

The spelling of 1248667655 in words is "one billion, two hundred forty-eight million, six hundred sixty-seven thousand, six hundred fifty-five".