118561465 has 16 divisors (see below), whose sum is σ = 155471040. Its totient is φ = 86080320.

The previous prime is 118561459. The next prime is 118561489. The reversal of 118561465 is 564165811.

It is not a de Polignac number, because 118561465 - 2⁷ = 118561337 is a prime.

It is a super-3 number, since 3×118561465³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 39187 + ... + 42103.

It is an arithmetic number, because the mean of its divisors is an integer number (9716940).

Almost surely, 2^118561465 is an apocalyptic number.

It is an amenable number.

118561465 is a deficient number, since it is larger than the sum of its proper divisors (36909575).

118561465 is a wasteful number, since it uses less digits than its factorization.

118561465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672.

The product of its digits is 28800, while the sum is 37.

The square root of 118561465 is about 10888.5933434948. The cubic root of 118561465 is about 491.2635237252.

It can be divided in two parts, 11 and 8561465, that added together give a square (8561476 = 2926²).

The spelling of 118561465 in words is "one hundred eighteen million, five hundred sixty-one thousand, four hundred sixty-five".