118571842 has 4 divisors (see below), whose sum is σ = 177857766. Its totient is φ = 59285920.

The previous prime is 118571819. The next prime is 118571863. The reversal of 118571842 is 248175811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248175811 = 13 ⋅19090447.

It can be written as a sum of positive squares in only one way, i.e., 118570321 + 1521 = 10889^2 + 39^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29642959 + ... + 29642962.

Almost surely, 2^118571842 is an apocalyptic number.

118571842 is a deficient number, since it is larger than the sum of its proper divisors (59285924).

118571842 is an equidigital number, since it uses as much as digits as its factorization.

118571842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59285923.

The product of its digits is 17920, while the sum is 37.

The square root of 118571842 is about 10889.0698409001. The cubic root of 118571842 is about 491.2778557930.

The spelling of 118571842 in words is "one hundred eighteen million, five hundred seventy-one thousand, eight hundred forty-two".