1145702247 has 16 divisors (see below), whose sum is σ = 1579422720. Its totient is φ = 737971200.

The previous prime is 1145702177. The next prime is 1145702279. The reversal of 1145702247 is 7422075411.

It is not a de Polignac number, because 1145702247 - 2¹⁵ = 1145669479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145712247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50004 + ... + 69222.

It is an arithmetic number, because the mean of its divisors is an integer number (98713920).

Almost surely, 2^1145702247 is an apocalyptic number.

1145702247 is a deficient number, since it is larger than the sum of its proper divisors (433720473).

1145702247 is a wasteful number, since it uses less digits than its factorization.

1145702247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19894.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 1145702247 is about 33848.2236904686. The cubic root of 1145702247 is about 1046.3827903494.

Adding to 1145702247 its reverse (7422075411), we get a palindrome (8567777658).

The spelling of 1145702247 in words is "one billion, one hundred forty-five million, seven hundred two thousand, two hundred forty-seven".