145542041 has 2 divisors, whose sum is σ = 145542042. Its totient is φ = 145542040.

The previous prime is 145542031. The next prime is 145542073. The reversal of 145542041 is 140245541.

145542041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125328025 + 20214016 = 11195^2 + 4496^2 .

It is a cyclic number.

It is not a de Polignac number, because 145542041 - 2¹⁴ = 145525657 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145542041.

It is not a weakly prime, because it can be changed into another prime (145542031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72771020 + 72771021.

It is an arithmetic number, because the mean of its divisors is an integer number (72771021).

Almost surely, 2^145542041 is an apocalyptic number.

It is an amenable number.

145542041 is a deficient number, since it is larger than the sum of its proper divisors (1).

145542041 is an equidigital number, since it uses as much as digits as its factorization.

145542041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 145542041 is about 12064.0806114681. The cubic root of 145542041 is about 526.0126077062.

Adding to 145542041 its reverse (140245541), we get a palindrome (285787582).

The spelling of 145542041 in words is "one hundred forty-five million, five hundred forty-two thousand, forty-one".