1165033905 has 24 divisors (see below), whose sum is σ = 2130987456. Its totient is φ = 532427040.

The previous prime is 1165033867. The next prime is 1165033913. The reversal of 1165033905 is 5093305611.

It is not a de Polignac number, because 1165033905 - 2¹⁴ = 1165017521 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348090 + ... + 351420.

It is an arithmetic number, because the mean of its divisors is an integer number (88791144).

Almost surely, 2^1165033905 is an apocalyptic number.

1165033905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1165033905 is a deficient number, since it is larger than the sum of its proper divisors (965953551).

1165033905 is an frugal number, since it uses more digits than its factorization.

1165033905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6677 (or 3346 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 1165033905 is about 34132.5930014114. The cubic root of 1165033905 is about 1052.2352698633.

The spelling of 1165033905 in words is "one billion, one hundred sixty-five million, thirty-three thousand, nine hundred five".