1249345763 has 8 divisors (see below), whose sum is σ = 1312302336. Its totient is φ = 1187109000.

The previous prime is 1249345751. The next prime is 1249345807. The reversal of 1249345763 is 3675439421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1249345763 - 2⁸ = 1249345507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1249345463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176393 + ... + 183338.

It is an arithmetic number, because the mean of its divisors is an integer number (164037792).

Almost surely, 2^1249345763 is an apocalyptic number.

1249345763 is a deficient number, since it is larger than the sum of its proper divisors (62956573).

1249345763 is a wasteful number, since it uses less digits than its factorization.

1249345763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359905.

The product of its digits is 544320, while the sum is 44.

The square root of 1249345763 is about 35346.0855399859. The cubic root of 1249345763 is about 1077.0293774336.

The spelling of 1249345763 in words is "one billion, two hundred forty-nine million, three hundred forty-five thousand, seven hundred sixty-three".