1151065605 has 8 divisors (see below), whose sum is σ = 1841704992. Its totient is φ = 613901648.

The previous prime is 1151065603. The next prime is 1151065723. The reversal of 1151065605 is 5065601511.

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 1151065605 - 2¹ = 1151065603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151065603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38368839 + ... + 38368868.

It is an arithmetic number, because the mean of its divisors is an integer number (230213124).

Almost surely, 2^1151065605 is an apocalyptic number.

1151065605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1151065605 is a deficient number, since it is larger than the sum of its proper divisors (690639387).

1151065605 is an equidigital number, since it uses as much as digits as its factorization.

1151065605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76737715.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 1151065605 is about 33927.3577662629. The cubic root of 1151065605 is about 1048.0130542073.

The spelling of 1151065605 in words is "one billion, one hundred fifty-one million, sixty-five thousand, six hundred five".