1320766247 has 8 divisors (see below), whose sum is σ = 1399614000. Its totient is φ = 1242851904.

The previous prime is 1320766229. The next prime is 1320766273. The reversal of 1320766247 is 7426670231.

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 1320766247 - 2¹⁴ = 1320749863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1320766247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320766207) 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 7 ways as a sum of consecutive naturals, for example, 230438 + ... + 236099.

It is an arithmetic number, because the mean of its divisors is an integer number (174951750).

Almost surely, 2^1320766247 is an apocalyptic number.

1320766247 is a deficient number, since it is larger than the sum of its proper divisors (78847753).

1320766247 is a wasteful number, since it uses less digits than its factorization.

1320766247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466705.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 1320766247 is about 36342.3478465550. The cubic root of 1320766247 is about 1097.1735278409.

The spelling of 1320766247 in words is "one billion, three hundred twenty million, seven hundred sixty-six thousand, two hundred forty-seven".