145244606442541 has 4 divisors (see below), whose sum is σ = 153788406821532. Its totient is φ = 136700806063552.

The previous prime is 145244606442491. The next prime is 145244606442571.

145244606442541 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127720511822500 + 17524094620041 = 11301350^2 + 4186179^2 .

It is a cyclic number.

It is not a de Polignac number, because 145244606442541 - 2³⁷ = 145107167489069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145244606442571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4271900189470 + ... + 4271900189503.

It is an arithmetic number, because the mean of its divisors is an integer number (38447101705383).

Almost surely, 2^{145244606442541} is an apocalyptic number.

It is an amenable number.

145244606442541 is a deficient number, since it is larger than the sum of its proper divisors (8543800378991).

145244606442541 is an equidigital number, since it uses as much as digits as its factorization.

145244606442541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8543800378990.

The product of its (nonzero) digits is 14745600, while the sum is 52.

The spelling of 145244606442541 in words is "one hundred forty-five trillion, two hundred forty-four billion, six hundred six million, four hundred forty-two thousand, five hundred forty-one".