1249650356 has 12 divisors (see below), whose sum is σ = 2189016480. Its totient is φ = 624217080.

The previous prime is 1249650343. The next prime is 1249650359. The reversal of 1249650356 is 6530569421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249650359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147386 + ... + 155633.

It is an arithmetic number, because the mean of its divisors is an integer number (182418040).

Almost surely, 2^1249650356 is an apocalyptic number.

It is an amenable number.

1249650356 is a deficient number, since it is larger than the sum of its proper divisors (939366124).

1249650356 is a wasteful number, since it uses less digits than its factorization.

1249650356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304054 (or 304052 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 1249650356 is about 35350.3940006331. The cubic root of 1249650356 is about 1077.1168976281.

The spelling of 1249650356 in words is "one billion, two hundred forty-nine million, six hundred fifty thousand, three hundred fifty-six".