118971965 has 16 divisors (see below), whose sum is σ = 163580160. Its totient is φ = 81371520.

The previous prime is 118971929. The next prime is 118971971. The reversal of 118971965 is 569179811.

It is not a de Polignac number, because 118971965 - 2¹⁰ = 118970941 is a prime.

It is a super-2 number, since 2×118971965² = 28308656911922450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10160 + ... + 18470.

It is an arithmetic number, because the mean of its divisors is an integer number (10223760).

Almost surely, 2^118971965 is an apocalyptic number.

It is an amenable number.

118971965 is a deficient number, since it is larger than the sum of its proper divisors (44608195).

118971965 is an equidigital number, since it uses as much as digits as its factorization.

118971965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8732.

The product of its digits is 136080, while the sum is 47.

The square root of 118971965 is about 10907.4270568269. The cubic root of 118971965 is about 491.8298442703.

The spelling of 118971965 in words is "one hundred eighteen million, nine hundred seventy-one thousand, nine hundred sixty-five".