1249214385 has 16 divisors (see below), whose sum is σ = 2018150784. Its totient is φ = 659778432.

The previous prime is 1249214377. The next prime is 1249214419. The reversal of 1249214385 is 5834129421.

It is not a de Polignac number, because 1249214385 - 2³ = 1249214377 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402732 + ... + 405821.

It is an arithmetic number, because the mean of its divisors is an integer number (126134424).

Almost surely, 2^1249214385 is an apocalyptic number.

1249214385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1249214385 is a deficient number, since it is larger than the sum of its proper divisors (768936399).

1249214385 is a wasteful number, since it uses less digits than its factorization.

1249214385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808664.

The product of its digits is 69120, while the sum is 39.

The square root of 1249214385 is about 35344.2270392210. The cubic root of 1249214385 is about 1076.9916235601.

The spelling of 1249214385 in words is "one billion, two hundred forty-nine million, two hundred fourteen thousand, three hundred eighty-five".