145440413105 has 32 divisors (see below), whose sum is σ = 190667584800. Its totient is φ = 105859049472.

The previous prime is 145440413101. The next prime is 145440413113. The reversal of 145440413105 is 501314044541.

It can be written as a sum of positive squares in 16 ways, for example, as 84378049441 + 61062363664 = 290479^2 + 247108^2 .

It is a cyclic number.

It is not a de Polignac number, because 145440413105 - 2² = 145440413101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145440413101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1794191 + ... + 1873499.

It is an arithmetic number, because the mean of its divisors is an integer number (5958362025).

Almost surely, 2^145440413105 is an apocalyptic number.

It is an amenable number.

145440413105 is a deficient number, since it is larger than the sum of its proper divisors (45227171695).

145440413105 is a wasteful number, since it uses less digits than its factorization.

145440413105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79733.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 145440413105 its reverse (501314044541), we get a palindrome (646754457646).

The spelling of 145440413105 in words is "one hundred forty-five billion, four hundred forty million, four hundred thirteen thousand, one hundred five".