1248254379 has 12 divisors (see below), whose sum is σ = 1804962432. Its totient is φ = 831279600.

The previous prime is 1248254377. The next prime is 1248254411. The reversal of 1248254379 is 9734528421.

1248254379 is a `hidden beast` number, since 1 + 24 + 8 + 254 + 379 = 666.

It is not a de Polignac number, because 1248254379 - 2¹ = 1248254377 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1248254377) 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 11 ways as a sum of consecutive naturals, for example, 65227 + ... + 82164.

It is an arithmetic number, because the mean of its divisors is an integer number (150413536).

Almost surely, 2^1248254379 is an apocalyptic number.

1248254379 is a deficient number, since it is larger than the sum of its proper divisors (556708053).

1248254379 is a wasteful number, since it uses less digits than its factorization.

1248254379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148338 (or 148335 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 1248254379 is about 35330.6436256120. The cubic root of 1248254379 is about 1076.7156678882.

The spelling of 1248254379 in words is "one billion, two hundred forty-eight million, two hundred fifty-four thousand, three hundred seventy-nine".