118164945 has 32 divisors (see below), whose sum is σ = 193100544. Its totient is φ = 61689600.

The previous prime is 118164941. The next prime is 118164947. The reversal of 118164945 is 549461811.

It is not a de Polignac number, because 118164945 - 2² = 118164941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118164941) 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 31 ways as a sum of consecutive naturals, for example, 192459 + ... + 193071.

It is an arithmetic number, because the mean of its divisors is an integer number (6034392).

Almost surely, 2^118164945 is an apocalyptic number.

118164945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118164945 is a deficient number, since it is larger than the sum of its proper divisors (74935599).

118164945 is a wasteful number, since it uses less digits than its factorization.

118164945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873.

The product of its digits is 34560, while the sum is 39.

The square root of 118164945 is about 10870.3700488990. The cubic root of 118164945 is about 490.7152472768.

It can be divided in two parts, 11816 and 4945, that added together give a palindrome (16761).

The spelling of 118164945 in words is "one hundred eighteen million, one hundred sixty-four thousand, nine hundred forty-five".