118861642 has 4 divisors (see below), whose sum is σ = 178292466. Its totient is φ = 59430820.

The previous prime is 118861627. The next prime is 118861643. The reversal of 118861642 is 246168811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 118788201 + 73441 = 10899^2 + 271^2 .

It is not an unprimeable number, because it can be changed into a prime (118861643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29715409 + ... + 29715412.

Almost surely, 2^118861642 is an apocalyptic number.

118861642 is a deficient number, since it is larger than the sum of its proper divisors (59430824).

118861642 is an equidigital number, since it uses as much as digits as its factorization.

118861642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59430823.

The product of its digits is 18432, while the sum is 37.

The square root of 118861642 is about 10902.3686417219. The cubic root of 118861642 is about 491.6777722411.

The spelling of 118861642 in words is "one hundred eighteen million, eight hundred sixty-one thousand, six hundred forty-two".