145322105 has 4 divisors (see below), whose sum is σ = 174386532. Its totient is φ = 116257680.

The previous prime is 145322101. The next prime is 145322113. The reversal of 145322105 is 501223541.

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 113827561 + 31494544 = 10669^2 + 5612^2 .

It is not a de Polignac number, because 145322105 - 2² = 145322101 is a prime.

It is a super-2 number, since 2×145322105² = 42237028403262050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145322101) 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 3 ways as a sum of consecutive naturals, for example, 14532206 + ... + 14532215.

It is an arithmetic number, because the mean of its divisors is an integer number (43596633).

Almost surely, 2^145322105 is an apocalyptic number.

It is an amenable number.

145322105 is a deficient number, since it is larger than the sum of its proper divisors (29064427).

145322105 is an equidigital number, since it uses as much as digits as its factorization.

145322105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29064426.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 145322105 is about 12054.9618414991. The cubic root of 145322105 is about 525.7475126367.

Adding to 145322105 its reverse (501223541), we get a palindrome (646545646).

The spelling of 145322105 in words is "one hundred forty-five million, three hundred twenty-two thousand, one hundred five".