145501522541 has 2 divisors, whose sum is σ = 145501522542. Its totient is φ = 145501522540.

The previous prime is 145501522447. The next prime is 145501522583. The reversal of 145501522541 is 145225105541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98687709316 + 46813813225 = 314146^2 + 216365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145501522541 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145501522141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72750761270 + 72750761271.

It is an arithmetic number, because the mean of its divisors is an integer number (72750761271).

Almost surely, 2^145501522541 is an apocalyptic number.

It is an amenable number.

145501522541 is a deficient number, since it is larger than the sum of its proper divisors (1).

145501522541 is an equidigital number, since it uses as much as digits as its factorization.

145501522541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40000, while the sum is 35.

The spelling of 145501522541 in words is "one hundred forty-five billion, five hundred one million, five hundred twenty-two thousand, five hundred forty-one".