1165372782 has 24 divisors (see below), whose sum is σ = 2711276136. Its totient is φ = 332963568.

The previous prime is 1165372759. The next prime is 1165372783. The reversal of 1165372782 is 2872735611.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165372783) 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 11 ways as a sum of consecutive naturals, for example, 1981633 + ... + 1982220.

It is an arithmetic number, because the mean of its divisors is an integer number (112969839).

Almost surely, 2^1165372782 is an apocalyptic number.

1165372782 is an abundant number, since it is smaller than the sum of its proper divisors (1545903354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1165372782 is a wasteful number, since it uses less digits than its factorization.

1165372782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963872 (or 3963865 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 1165372782 is about 34137.5567667049. The cubic root of 1165372782 is about 1052.3372822776.

The spelling of 1165372782 in words is "one billion, one hundred sixty-five million, three hundred seventy-two thousand, seven hundred eighty-two".