118689949 has 8 divisors (see below), whose sum is σ = 138205440. Its totient is φ = 99814416.

The previous prime is 118689947. The next prime is 118689983. The reversal of 118689949 is 949986811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118689949 - 2¹ = 118689947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118689949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118689947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159589 + ... + 160330.

It is an arithmetic number, because the mean of its divisors is an integer number (17275680).

Almost surely, 2^118689949 is an apocalyptic number.

It is an amenable number.

118689949 is a deficient number, since it is larger than the sum of its proper divisors (19515491).

118689949 is an equidigital number, since it uses as much as digits as its factorization.

118689949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319979.

The product of its digits is 1119744, while the sum is 55.

The square root of 118689949 is about 10894.4916815793. The cubic root of 118689949 is about 491.4409189568.

The spelling of 118689949 in words is "one hundred eighteen million, six hundred eighty-nine thousand, nine hundred forty-nine".