105054987 has 8 divisors (see below), whose sum is σ = 142447680. Its totient is φ = 68849480.

The previous prime is 105054979. The next prime is 105055021. The reversal of 105054987 is 789450501.

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 105054987 - 2³ = 105054979 is a prime.

It is a super-3 number, since 3×105054987³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (105054947) 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, 296589 + ... + 296942.

It is an arithmetic number, because the mean of its divisors is an integer number (17805960).

Almost surely, 2^105054987 is an apocalyptic number.

105054987 is a deficient number, since it is larger than the sum of its proper divisors (37392693).

105054987 is an equidigital number, since it uses as much as digits as its factorization.

105054987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593593.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 105054987 is about 10249.6335056430. The cubic root of 105054987 is about 471.8517366249.

The spelling of 105054987 in words is "one hundred five million, fifty-four thousand, nine hundred eighty-seven".