1249849852 has 12 divisors (see below), whose sum is σ = 2188853856. Its totient is φ = 624463040.

The previous prime is 1249849841. The next prime is 1249849871. The reversal of 1249849852 is 2589489421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1249849852.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 109348 + ... + 120235.

It is an arithmetic number, because the mean of its divisors is an integer number (182404488).

Almost surely, 2^1249849852 is an apocalyptic number.

It is an amenable number.

1249849852 is a deficient number, since it is larger than the sum of its proper divisors (939004004).

1249849852 is a wasteful number, since it uses less digits than its factorization.

1249849852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230948 (or 230946 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The square root of 1249849852 is about 35353.2155821787. The cubic root of 1249849852 is about 1077.1742120809.

The spelling of 1249849852 in words is "one billion, two hundred forty-nine million, eight hundred forty-nine thousand, eight hundred fifty-two".