146644010521 has 2 divisors, whose sum is σ = 146644010522. Its totient is φ = 146644010520.

The previous prime is 146644010509. The next prime is 146644010533. The reversal of 146644010521 is 125010446641.

It is a balanced prime because it is at equal distance from previous prime (146644010509) and next prime (146644010533).

It can be written as a sum of positive squares in only one way, i.e., 84724655625 + 61919354896 = 291075^2 + 248836^2 .

It is a cyclic number.

It is not a de Polignac number, because 146644010521 - 2¹⁷ = 146643879449 is a prime.

It is a super-3 number, since 3×146644010521³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (146644010221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73322005260 + 73322005261.

It is an arithmetic number, because the mean of its divisors is an integer number (73322005261).

Almost surely, 2^146644010521 is an apocalyptic number.

It is an amenable number.

146644010521 is a deficient number, since it is larger than the sum of its proper divisors (1).

146644010521 is an equidigital number, since it uses as much as digits as its factorization.

146644010521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 146644010521 in words is "one hundred forty-six billion, six hundred forty-four million, ten thousand, five hundred twenty-one".