118430381 has 8 divisors (see below), whose sum is σ = 130849344. Its totient is φ = 106617280.

The previous prime is 118430369. The next prime is 118430393. The reversal of 118430381 is 183034811.

It is an interprime number because it is at equal distance from previous prime (118430369) and next prime (118430393).

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 118430381 - 2⁶ = 118430317 is a prime.

It is a super-2 number, since 2×118430381² = 28051510287610322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118430311) 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, 151055 + ... + 151836.

It is an arithmetic number, because the mean of its divisors is an integer number (16356168).

Almost surely, 2^118430381 is an apocalyptic number.

It is an amenable number.

118430381 is a deficient number, since it is larger than the sum of its proper divisors (12418963).

118430381 is a wasteful number, since it uses less digits than its factorization.

118430381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302931.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 118430381 is about 10882.5723521601. The cubic root of 118430381 is about 491.0824065999.

It can be divided in two parts, 118430 and 381, that added together give a palindrome (118811).

The spelling of 118430381 in words is "one hundred eighteen million, four hundred thirty thousand, three hundred eighty-one".