1151671065 has 64 divisors (see below), whose sum is σ = 2000388096. Its totient is φ = 564233472.

The previous prime is 1151671063. The next prime is 1151671097. The reversal of 1151671065 is 5601761511.

It is not a de Polignac number, because 1151671065 - 2¹ = 1151671063 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1151671063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1058952 + ... + 1060038.

It is an arithmetic number, because the mean of its divisors is an integer number (31256064).

Almost surely, 2^1151671065 is an apocalyptic number.

1151671065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1151671065 is a deficient number, since it is larger than the sum of its proper divisors (848717031).

1151671065 is a wasteful number, since it uses less digits than its factorization.

1151671065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its (nonzero) digits is 6300, while the sum is 33.

The square root of 1151671065 is about 33936.2794808152. The cubic root of 1151671065 is about 1048.1967734669.

The spelling of 1151671065 in words is "one billion, one hundred fifty-one million, six hundred seventy-one thousand, sixty-five".