145029105 has 24 divisors (see below), whose sum is σ = 270722088. Its totient is φ = 71398656.

The previous prime is 145029061. The next prime is 145029107. The reversal of 145029105 is 501920541.

It can be written as a sum of positive squares in 4 ways, for example, as 3038049 + 141991056 = 1743^2 + 11916^2 .

It is not a de Polignac number, because 145029105 - 2¹⁵ = 144996337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145029107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123372 + ... + 124541.

It is an arithmetic number, because the mean of its divisors is an integer number (11280087).

Almost surely, 2^145029105 is an apocalyptic number.

145029105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145029105 is a deficient number, since it is larger than the sum of its proper divisors (125692983).

145029105 is a wasteful number, since it uses less digits than its factorization.

145029105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247937 (or 247934 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 145029105 is about 12042.8030374992. The cubic root of 145029105 is about 525.3939356276.

Adding to 145029105 its reverse (501920541), we get a palindrome (646949646).

The spelling of 145029105 in words is "one hundred forty-five million, twenty-nine thousand, one hundred five".