105145545 has 16 divisors (see below), whose sum is σ = 169900992. Its totient is φ = 55521600.

The previous prime is 105145543. The next prime is 105145553. The reversal of 105145545 is 545541501.

It is not a de Polignac number, because 105145545 - 2¹ = 105145543 is a prime.

It is a super-2 number, since 2×105145545² = 22111171266694050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105145541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33187 + ... + 36216.

It is an arithmetic number, because the mean of its divisors is an integer number (10618812).

Almost surely, 2^105145545 is an apocalyptic number.

105145545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105145545 is a deficient number, since it is larger than the sum of its proper divisors (64755447).

105145545 is a wasteful number, since it uses less digits than its factorization.

105145545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69512.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 105145545 is about 10254.0501754185. The cubic root of 105145545 is about 471.9872773191.

The spelling of 105145545 in words is "one hundred five million, one hundred forty-five thousand, five hundred forty-five".