146228293 has 2 divisors, whose sum is σ = 146228294. Its totient is φ = 146228292.

The previous prime is 146228287. The next prime is 146228311. The reversal of 146228293 is 392822641.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144793089 + 1435204 = 12033^2 + 1198^2 .

It is an emirp because it is prime and its reverse (392822641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146228293 - 2⁵ = 146228261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146228393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73114146 + 73114147.

It is an arithmetic number, because the mean of its divisors is an integer number (73114147).

Almost surely, 2^146228293 is an apocalyptic number.

It is an amenable number.

146228293 is a deficient number, since it is larger than the sum of its proper divisors (1).

146228293 is an equidigital number, since it uses as much as digits as its factorization.

146228293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 37.

The square root of 146228293 is about 12092.4891151491. The cubic root of 146228293 is about 526.8380538103.

The spelling of 146228293 in words is "one hundred forty-six million, two hundred twenty-eight thousand, two hundred ninety-three".