118554521 has 4 divisors (see below), whose sum is σ = 118626000. Its totient is φ = 118483044.

The previous prime is 118554517. The next prime is 118554529. The reversal of 118554521 is 125455811.

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 118554521 - 2² = 118554517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118554529) 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, 33191 + ... + 36588.

It is an arithmetic number, because the mean of its divisors is an integer number (29656500).

Almost surely, 2^118554521 is an apocalyptic number.

It is an amenable number.

118554521 is a deficient number, since it is larger than the sum of its proper divisors (71479).

118554521 is an equidigital number, since it uses as much as digits as its factorization.

118554521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71478.

The product of its digits is 8000, while the sum is 32.

The square root of 118554521 is about 10888.2744730283. The cubic root of 118554521 is about 491.2539326367.

The spelling of 118554521 in words is "one hundred eighteen million, five hundred fifty-four thousand, five hundred twenty-one".