146893297 has 2 divisors, whose sum is σ = 146893298. Its totient is φ = 146893296.

The previous prime is 146893261. The next prime is 146893309. The reversal of 146893297 is 792398641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87310336 + 59582961 = 9344^2 + 7719^2 .

It is an emirp because it is prime and its reverse (792398641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146893297 - 2¹⁵ = 146860529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146893297.

It is not a weakly prime, because it can be changed into another prime (146893897) 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, 73446648 + 73446649.

It is an arithmetic number, because the mean of its divisors is an integer number (73446649).

Almost surely, 2^146893297 is an apocalyptic number.

It is an amenable number.

146893297 is a deficient number, since it is larger than the sum of its proper divisors (1).

146893297 is an equidigital number, since it uses as much as digits as its factorization.

146893297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 49.

The square root of 146893297 is about 12119.9544966143. The cubic root of 146893297 is about 527.6354819226.

The spelling of 146893297 in words is "one hundred forty-six million, eight hundred ninety-three thousand, two hundred ninety-seven".