1165756045 has 8 divisors (see below), whose sum is σ = 1481196024. Its totient is φ = 877745664.

The previous prime is 1165755967. The next prime is 1165756051. The reversal of 1165756045 is 5406575611.

It can be written as a sum of positive squares in 4 ways, for example, as 289714441 + 876041604 = 17021^2 + 29598^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1165756045 - 2⁷ = 1165755917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1165755989 and 1165756007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6857304 + ... + 6857473.

It is an arithmetic number, because the mean of its divisors is an integer number (185149503).

Almost surely, 2^1165756045 is an apocalyptic number.

It is an amenable number.

1165756045 is a deficient number, since it is larger than the sum of its proper divisors (315439979).

1165756045 is a wasteful number, since it uses less digits than its factorization.

1165756045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13714799.

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 1165756045 is about 34143.1698147668. The cubic root of 1165756045 is about 1052.4526324167.

The spelling of 1165756045 in words is "one billion, one hundred sixty-five million, seven hundred fifty-six thousand, forty-five".