118461445 has 4 divisors (see below), whose sum is σ = 142153740. Its totient is φ = 94769152.

The previous prime is 118461437. The next prime is 118461449. The reversal of 118461445 is 544164811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544164811 = 2351 ⋅231461.

It can be written as a sum of positive squares in 2 ways, for example, as 27029601 + 91431844 = 5199^2 + 9562^2 .

It is a cyclic number.

It is not a de Polignac number, because 118461445 - 2³ = 118461437 is a prime.

It is a super-2 number, since 2×118461445² = 28066227902976050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 118461445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118461449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11846140 + ... + 11846149.

It is an arithmetic number, because the mean of its divisors is an integer number (35538435).

Almost surely, 2^118461445 is an apocalyptic number.

It is an amenable number.

118461445 is a deficient number, since it is larger than the sum of its proper divisors (23692295).

118461445 is an equidigital number, since it uses as much as digits as its factorization.

118461445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23692294.

The product of its digits is 15360, while the sum is 34.

The square root of 118461445 is about 10883.9994946711. Note that the first 3 decimals coincide. The cubic root of 118461445 is about 491.1253394188.

The spelling of 118461445 in words is "one hundred eighteen million, four hundred sixty-one thousand, four hundred forty-five".