1165687412 has 12 divisors (see below), whose sum is σ = 2060984100. Its totient is φ = 576834816.

The previous prime is 1165687361. The next prime is 1165687429. The reversal of 1165687412 is 2147865611.

It can be written as a sum of positive squares in 2 ways, for example, as 917120656 + 248566756 = 30284^2 + 15766^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1165687412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501787 + ... + 1502562.

It is an arithmetic number, because the mean of its divisors is an integer number (171748675).

Almost surely, 2^1165687412 is an apocalyptic number.

It is an amenable number.

1165687412 is a deficient number, since it is larger than the sum of its proper divisors (895296688).

1165687412 is a wasteful number, since it uses less digits than its factorization.

1165687412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004450 (or 3004448 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 1165687412 is about 34142.1647234032. The cubic root of 1165687412 is about 1052.4319778954.

The spelling of 1165687412 in words is "one billion, one hundred sixty-five million, six hundred eighty-seven thousand, four hundred twelve".