118961145 has 12 divisors (see below), whose sum is σ = 206199396. Its totient is φ = 63445920.

The previous prime is 118961119. The next prime is 118961159. The reversal of 118961145 is 541169811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61261929 + 57699216 = 7827^2 + 7596^2 .

It is not a de Polignac number, because 118961145 - 2⁶ = 118961081 is a prime.

It is a super-2 number, since 2×118961145² = 28303508039422050, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 1321746 + ... + 1321835.

It is an arithmetic number, because the mean of its divisors is an integer number (17183283).

Almost surely, 2^118961145 is an apocalyptic number.

118961145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118961145 is a deficient number, since it is larger than the sum of its proper divisors (87238251).

118961145 is a wasteful number, since it uses less digits than its factorization.

118961145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643592 (or 2643589 counting only the distinct ones).

The product of its digits is 8640, while the sum is 36.

The square root of 118961145 is about 10906.9310532340. The cubic root of 118961145 is about 491.8149338661.

It can be divided in two parts, 11896 and 1145, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 118961145 in words is "one hundred eighteen million, nine hundred sixty-one thousand, one hundred forty-five".