146382521 has 2 divisors, whose sum is σ = 146382522. Its totient is φ = 146382520.

The previous prime is 146382499. The next prime is 146382553. The reversal of 146382521 is 125283641.

It is an a-pointer prime, because the next prime (146382553) can be obtained adding 146382521 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138180025 + 8202496 = 11755^2 + 2864^2 .

It is a cyclic number.

It is not a de Polignac number, because 146382521 - 2¹⁰ = 146381497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146382421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73191260 + 73191261.

It is an arithmetic number, because the mean of its divisors is an integer number (73191261).

Almost surely, 2^146382521 is an apocalyptic number.

It is an amenable number.

146382521 is a deficient number, since it is larger than the sum of its proper divisors (1).

146382521 is an equidigital number, since it uses as much as digits as its factorization.

146382521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 146382521 is about 12098.8644508483. The cubic root of 146382521 is about 527.0232086535.

The spelling of 146382521 in words is "one hundred forty-six million, three hundred eighty-two thousand, five hundred twenty-one".