118442745 has 12 divisors (see below), whose sum is σ = 205300836. Its totient is φ = 63169440.

The previous prime is 118442741. The next prime is 118442759. The reversal of 118442745 is 547244811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31505769 + 86936976 = 5613^2 + 9324^2 .

It is not a de Polignac number, because 118442745 - 2² = 118442741 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (118442741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1315986 + ... + 1316075.

It is an arithmetic number, because the mean of its divisors is an integer number (17108403).

Almost surely, 2^118442745 is an apocalyptic number.

118442745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118442745 is a deficient number, since it is larger than the sum of its proper divisors (86858091).

118442745 is a wasteful number, since it uses less digits than its factorization.

118442745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632072 (or 2632069 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 118442745 is about 10883.1404015569. The cubic root of 118442745 is about 491.0994954908.

The spelling of 118442745 in words is "one hundred eighteen million, four hundred forty-two thousand, seven hundred forty-five".