105987455 has 8 divisors (see below), whose sum is σ = 145354272. Its totient is φ = 72677088.

The previous prime is 105987449. The next prime is 105987457. The reversal of 105987455 is 554789501.

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 105987455 - 2⁶ = 105987391 is a prime.

It is a super-2 number, since 2×105987455² = 22466681234754050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105987457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1514072 + ... + 1514141.

It is an arithmetic number, because the mean of its divisors is an integer number (18169284).

Almost surely, 2^105987455 is an apocalyptic number.

105987455 is a deficient number, since it is larger than the sum of its proper divisors (39366817).

105987455 is an equidigital number, since it uses as much as digits as its factorization.

105987455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028225.

The product of its (nonzero) digits is 252000, while the sum is 44.

The square root of 105987455 is about 10295.0208839031. The cubic root of 105987455 is about 473.2436783289.

The spelling of 105987455 in words is "one hundred five million, nine hundred eighty-seven thousand, four hundred fifty-five".