145521021124279 has 2 divisors, whose sum is σ = 145521021124280. Its totient is φ = 145521021124278.

The previous prime is 145521021124243. The next prime is 145521021124361. The reversal of 145521021124279 is 972421120125541.

145521021124279 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 is a cyclic number.

It is not a de Polignac number, because 145521021124279 - 2³³ = 145512431189687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145521021424279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72760510562139 + 72760510562140.

It is an arithmetic number, because the mean of its divisors is an integer number (72760510562140).

Almost surely, 2^{145521021124279} is an apocalyptic number.

145521021124279 is a deficient number, since it is larger than the sum of its proper divisors (1).

145521021124279 is an equidigital number, since it uses as much as digits as its factorization.

145521021124279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 46.

The spelling of 145521021124279 in words is "one hundred forty-five trillion, five hundred twenty-one billion, twenty-one million, one hundred twenty-four thousand, two hundred seventy-nine".