118779749 has 8 divisors (see below), whose sum is σ = 131702880. Its totient is φ = 106210800.

The previous prime is 118779743. The next prime is 118779757. The reversal of 118779749 is 947977811.

It is a happy number.

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 118779749 - 2¹² = 118775653 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 118779749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118779743) 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, 87839 + ... + 89180.

It is an arithmetic number, because the mean of its divisors is an integer number (16462860).

Almost surely, 2^118779749 is an apocalyptic number.

It is an amenable number.

118779749 is a deficient number, since it is larger than the sum of its proper divisors (12923131).

118779749 is a wasteful number, since it uses less digits than its factorization.

118779749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177091.

The product of its digits is 889056, while the sum is 53.

The square root of 118779749 is about 10898.6122511079. The cubic root of 118779749 is about 491.5648279868.

The spelling of 118779749 in words is "one hundred eighteen million, seven hundred seventy-nine thousand, seven hundred forty-nine".