146620241 has 2 divisors, whose sum is σ = 146620242. Its totient is φ = 146620240.

The previous prime is 146620231. The next prime is 146620301. The reversal of 146620241 is 142026641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110859841 + 35760400 = 10529^2 + 5980^2 .

It is an emirp because it is prime and its reverse (142026641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146620241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146620241.

It is not a weakly prime, because it can be changed into another prime (146620211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73310120 + 73310121.

It is an arithmetic number, because the mean of its divisors is an integer number (73310121).

Almost surely, 2^146620241 is an apocalyptic number.

It is an amenable number.

146620241 is a deficient number, since it is larger than the sum of its proper divisors (1).

146620241 is an equidigital number, since it uses as much as digits as its factorization.

146620241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 146620241 is about 12108.6845280567. The cubic root of 146620241 is about 527.3083433325.

Adding to 146620241 its reverse (142026641), we get a palindrome (288646882).

The spelling of 146620241 in words is "one hundred forty-six million, six hundred twenty thousand, two hundred forty-one".