145575541 has 2 divisors, whose sum is σ = 145575542. Its totient is φ = 145575540.

The previous prime is 145575503. The next prime is 145575553.

145575541 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81974916 + 63600625 = 9054^2 + 7975^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 145575541 - 2²⁷ = 11357813 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 145575541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145575571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72787770 + 72787771.

It is an arithmetic number, because the mean of its divisors is an integer number (72787771).

Almost surely, 2^145575541 is an apocalyptic number.

It is an amenable number.

145575541 is a deficient number, since it is larger than the sum of its proper divisors (1).

145575541 is an equidigital number, since it uses as much as digits as its factorization.

145575541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70000, while the sum is 37.

The square root of 145575541 is about 12065.4689506873. The cubic root of 145575541 is about 526.0529627597.

Subtracting from 145575541 its product of digits (70000), we obtain a palindrome (145505541).

The spelling of 145575541 in words is "one hundred forty-five million, five hundred seventy-five thousand, five hundred forty-one".