118123621 has 8 divisors (see below), whose sum is σ = 147271104. Its totient is φ = 92044320.

The previous prime is 118123619. The next prime is 118123631. The reversal of 118123621 is 126321811.

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 118123621 - 2¹ = 118123619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118123631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766960 + ... + 767113.

It is an arithmetic number, because the mean of its divisors is an integer number (18408888).

Almost surely, 2^118123621 is an apocalyptic number.

118123621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

118123621 is a deficient number, since it is larger than the sum of its proper divisors (29147483).

118123621 is a wasteful number, since it uses less digits than its factorization.

118123621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534091.

The product of its digits is 576, while the sum is 25.

The square root of 118123621 is about 10868.4691194298. The cubic root of 118123621 is about 490.6580371873.

The spelling of 118123621 in words is "one hundred eighteen million, one hundred twenty-three thousand, six hundred twenty-one".