1249082019 has 16 divisors (see below), whose sum is σ = 1864004640. Its totient is φ = 826640640.

The previous prime is 1249081993. The next prime is 1249082041. The reversal of 1249082019 is 9102809421.

It is not a de Polignac number, because 1249082019 - 2⁸ = 1249081763 is a prime.

It is a super-2 number, since 2×1249082019² = 3120411780378232722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1249082069) 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, 165142 + ... + 172539.

It is an arithmetic number, because the mean of its divisors is an integer number (116500290).

Almost surely, 2^1249082019 is an apocalyptic number.

1249082019 is a deficient number, since it is larger than the sum of its proper divisors (614922621).

1249082019 is a wasteful number, since it uses less digits than its factorization.

1249082019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337827 (or 337821 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1249082019 is about 35342.3544631650. The cubic root of 1249082019 is about 1076.9535830897.

The spelling of 1249082019 in words is "one billion, two hundred forty-nine million, eighty-two thousand, nineteen".