118949551 has 8 divisors (see below), whose sum is σ = 136206464. Its totient is φ = 101758680.

The previous prime is 118949539. The next prime is 118949581. The reversal of 118949551 is 155949811.

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 118949551 - 2⁷ = 118949423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118949498 and 118949507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118949521) 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, 12585 + ... + 19906.

It is an arithmetic number, because the mean of its divisors is an integer number (17025808).

Almost surely, 2^118949551 is an apocalyptic number.

118949551 is a deficient number, since it is larger than the sum of its proper divisors (17256913).

118949551 is an equidigital number, since it uses as much as digits as its factorization.

118949551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33021.

The product of its digits is 64800, while the sum is 43.

The square root of 118949551 is about 10906.3995433874. The cubic root of 118949551 is about 491.7989558547.

The spelling of 118949551 in words is "one hundred eighteen million, nine hundred forty-nine thousand, five hundred fifty-one".