145069105 has 4 divisors (see below), whose sum is σ = 174082932. Its totient is φ = 116055280.

The previous prime is 145069091. The next prime is 145069121. The reversal of 145069105 is 501960541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25735329 + 119333776 = 5073^2 + 10924^2 .

It is not a de Polignac number, because 145069105 - 2¹³ = 145060913 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14506906 + ... + 14506915.

It is an arithmetic number, because the mean of its divisors is an integer number (43520733).

Almost surely, 2^145069105 is an apocalyptic number.

It is an amenable number.

145069105 is a deficient number, since it is larger than the sum of its proper divisors (29013827).

145069105 is an equidigital number, since it uses as much as digits as its factorization.

145069105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29013826.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 145069105 is about 12044.4636659338. The cubic root of 145069105 is about 525.4422335781.

The spelling of 145069105 in words is "one hundred forty-five million, sixty-nine thousand, one hundred five".