145432240045 has 4 divisors (see below), whose sum is σ = 174518688060. Its totient is φ = 116345792032.

The previous prime is 145432240043. The next prime is 145432240081. The reversal of 145432240045 is 540042234541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540042234541 = 2357 ⋅229122713.

It can be written as a sum of positive squares in 2 ways, for example, as 57509315721 + 87922924324 = 239811^2 + 296518^2 .

It is a cyclic number.

It is not a de Polignac number, because 145432240045 - 2¹ = 145432240043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145432240043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14543224000 + ... + 14543224009.

It is an arithmetic number, because the mean of its divisors is an integer number (43629672015).

Almost surely, 2^145432240045 is an apocalyptic number.

It is an amenable number.

145432240045 is a deficient number, since it is larger than the sum of its proper divisors (29086448015).

145432240045 is an equidigital number, since it uses as much as digits as its factorization.

145432240045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29086448014.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 145432240045 its reverse (540042234541), we get a palindrome (685474474586).

The spelling of 145432240045 in words is "one hundred forty-five billion, four hundred thirty-two million, two hundred forty thousand, forty-five".