146253893 has 2 divisors, whose sum is σ = 146253894. Its totient is φ = 146253892.

The previous prime is 146253883. The next prime is 146253917. The reversal of 146253893 is 398352641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131377444 + 14876449 = 11462^2 + 3857^2 .

It is an emirp because it is prime and its reverse (398352641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146253893 - 2¹⁸ = 145991749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146253893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146253853) 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, 73126946 + 73126947.

It is an arithmetic number, because the mean of its divisors is an integer number (73126947).

Almost surely, 2^146253893 is an apocalyptic number.

It is an amenable number.

146253893 is a deficient number, since it is larger than the sum of its proper divisors (1).

146253893 is an equidigital number, since it uses as much as digits as its factorization.

146253893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 146253893 is about 12093.5475771173. The cubic root of 146253893 is about 526.8687963042.

It can be divided in two parts, 1462 and 53893, that added together give a palindrome (55355).

The spelling of 146253893 in words is "one hundred forty-six million, two hundred fifty-three thousand, eight hundred ninety-three".