105214554 has 24 divisors (see below), whose sum is σ = 230529780. Its totient is φ = 34676928.

The previous prime is 105214553. The next prime is 105214561. The reversal of 105214554 is 455412501.

105214554 is a `hidden beast` number, since 105 + 2 + 1 + 4 + 554 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 92448225 + 12766329 = 9615^2 + 3573^2 .

It is a super-2 number, since 2×105214554² = 22140204746837832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105214553) 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 11 ways as a sum of consecutive naturals, for example, 31237 + ... + 34440.

Almost surely, 2^105214554 is an apocalyptic number.

105214554 is an abundant number, since it is smaller than the sum of its proper divisors (125315226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105214554 is a wasteful number, since it uses less digits than its factorization.

105214554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65774 (or 65771 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 105214554 is about 10257.4145865320. The cubic root of 105214554 is about 472.0905127816.

The spelling of 105214554 in words is "one hundred five million, two hundred fourteen thousand, five hundred fifty-four".