1248545455 has 16 divisors (see below), whose sum is σ = 1565703360. Its totient is φ = 953998848.

The previous prime is 1248545453. The next prime is 1248545471. The reversal of 1248545455 is 5545458421.

It is a cyclic number.

It is not a de Polignac number, because 1248545455 - 2¹ = 1248545453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248545453) 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 15 ways as a sum of consecutive naturals, for example, 73879 + ... + 89191.

It is an arithmetic number, because the mean of its divisors is an integer number (97856460).

Almost surely, 2^1248545455 is an apocalyptic number.

1248545455 is a deficient number, since it is larger than the sum of its proper divisors (317157905).

1248545455 is a wasteful number, since it uses less digits than its factorization.

1248545455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16050.

The product of its digits is 640000, while the sum is 43.

The square root of 1248545455 is about 35334.7626990758. The cubic root of 1248545455 is about 1076.7993532164.

The spelling of 1248545455 in words is "one billion, two hundred forty-eight million, five hundred forty-five thousand, four hundred fifty-five".