118722381 has 8 divisors (see below), whose sum is σ = 162574944. Its totient is φ = 77009040.

The previous prime is 118722371. The next prime is 118722397. The reversal of 118722381 is 183227811.

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

It is not a de Polignac number, because 118722381 - 2⁵ = 118722349 is a prime.

It is a super-2 number, since 2×118722381² = 28190007500618322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118722311) 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, 534675 + ... + 534896.

It is an arithmetic number, because the mean of its divisors is an integer number (20321868).

Almost surely, 2^118722381 is an apocalyptic number.

It is an amenable number.

118722381 is a deficient number, since it is larger than the sum of its proper divisors (43852563).

118722381 is a wasteful number, since it uses less digits than its factorization.

118722381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069611.

The product of its digits is 5376, while the sum is 33.

The square root of 118722381 is about 10895.9800385280. The cubic root of 118722381 is about 491.4856769179.

The spelling of 118722381 in words is "one hundred eighteen million, seven hundred twenty-two thousand, three hundred eighty-one".