145235105 has 16 divisors (see below), whose sum is σ = 178050960. Its totient is φ = 113687808.

The previous prime is 145235089. The next prime is 145235117. The reversal of 145235105 is 501532541.

It can be written as a sum of positive squares in 8 ways, for example, as 24960016 + 120275089 = 4996^2 + 10967^2 .

It is a cyclic number.

It is not a de Polignac number, because 145235105 - 2⁴ = 145235089 is a prime.

It is a super-2 number, since 2×145235105² = 42186471448722050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187499 + ... + 188271.

It is an arithmetic number, because the mean of its divisors is an integer number (11128185).

Almost surely, 2^145235105 is an apocalyptic number.

It is an amenable number.

145235105 is a deficient number, since it is larger than the sum of its proper divisors (32815855).

145235105 is an equidigital number, since it uses as much as digits as its factorization.

145235105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 145235105 is about 12051.3528286247. The cubic root of 145235105 is about 525.6425752532.

Adding to 145235105 its reverse (501532541), we get a palindrome (646767646).

The spelling of 145235105 in words is "one hundred forty-five million, two hundred thirty-five thousand, one hundred five".