1145682769 has 24 divisors (see below), whose sum is σ = 1458364608. Its totient is φ = 892595760.

The previous prime is 1145682743. The next prime is 1145682773. The reversal of 1145682769 is 9672865411.

It is a happy number.

It is not a de Polignac number, because 1145682769 - 2²¹ = 1143585617 is a prime.

It is a super-2 number, since 2×1145682769² = 2625178014367014722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145682719) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181779 + ... + 187975.

It is an arithmetic number, because the mean of its divisors is an integer number (60765192).

Almost surely, 2^1145682769 is an apocalyptic number.

It is an amenable number.

1145682769 is a deficient number, since it is larger than the sum of its proper divisors (312681839).

1145682769 is an frugal number, since it uses more digits than its factorization.

1145682769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6243 (or 6215 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The square root of 1145682769 is about 33847.9359636596. The cubic root of 1145682769 is about 1046.3768604900.

The spelling of 1145682769 in words is "one billion, one hundred forty-five million, six hundred eighty-two thousand, seven hundred sixty-nine".