1172268247 has 16 divisors (see below), whose sum is σ = 1233963360. Its totient is φ = 1112082048.

The previous prime is 1172268233. The next prime is 1172268271. The reversal of 1172268247 is 7428622711.

It is a cyclic number.

It is not a de Polignac number, because 1172268247 - 2¹⁵ = 1172235479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172268277) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1470453 + ... + 1471249.

It is an arithmetic number, because the mean of its divisors is an integer number (77122710).

Almost surely, 2^1172268247 is an apocalyptic number.

1172268247 is a deficient number, since it is larger than the sum of its proper divisors (61695113).

1172268247 is an equidigital number, since it uses as much as digits as its factorization.

1172268247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650.

The product of its digits is 75264, while the sum is 40.

The square root of 1172268247 is about 34238.4031023645. The cubic root of 1172268247 is about 1054.4087481683.

The spelling of 1172268247 in words is "one billion, one hundred seventy-two million, two hundred sixty-eight thousand, two hundred forty-seven".