105071145 has 16 divisors (see below), whose sum is σ = 172024512. Its totient is φ = 54734400.

The previous prime is 105071143. The next prime is 105071171. The reversal of 105071145 is 541170501.

It is not a de Polignac number, because 105071145 - 2¹ = 105071143 is a prime.

It is a super-2 number, since 2×105071145² = 22079891023222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105071143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80806 + ... + 82095.

It is an arithmetic number, because the mean of its divisors is an integer number (10751532).

Almost surely, 2^105071145 is an apocalyptic number.

105071145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105071145 is a deficient number, since it is larger than the sum of its proper divisors (66953367).

105071145 is a wasteful number, since it uses less digits than its factorization.

105071145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162952.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 105071145 is about 10250.4216986425. The cubic root of 105071145 is about 471.8759264634.

The spelling of 105071145 in words is "one hundred five million, seventy-one thousand, one hundred forty-five".