118056921 has 4 divisors (see below), whose sum is σ = 157409232. Its totient is φ = 78704612.

The previous prime is 118056877. The next prime is 118056923. The reversal of 118056921 is 129650811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 118056921 - 2¹⁹ = 117532633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118056923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19676151 + ... + 19676156.

It is an arithmetic number, because the mean of its divisors is an integer number (39352308).

Almost surely, 2^118056921 is an apocalyptic number.

It is an amenable number.

118056921 is a deficient number, since it is larger than the sum of its proper divisors (39352311).

118056921 is an equidigital number, since it uses as much as digits as its factorization.

118056921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39352310.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 118056921 is about 10865.4001767077. The cubic root of 118056921 is about 490.5656677058.

The spelling of 118056921 in words is "one hundred eighteen million, fifty-six thousand, nine hundred twenty-one".