146225291 has 2 divisors, whose sum is σ = 146225292. Its totient is φ = 146225290.

The previous prime is 146225263. The next prime is 146225293. The reversal of 146225291 is 192522641.

146225291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146225291 - 2⁶ = 146225227 is a prime.

Together with 146225293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146225293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73112645 + 73112646.

It is an arithmetic number, because the mean of its divisors is an integer number (73112646).

Almost surely, 2^146225291 is an apocalyptic number.

146225291 is a deficient number, since it is larger than the sum of its proper divisors (1).

146225291 is an equidigital number, since it uses as much as digits as its factorization.

146225291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 146225291 is about 12092.3649878756. The cubic root of 146225291 is about 526.8344485375.

The spelling of 146225291 in words is "one hundred forty-six million, two hundred twenty-five thousand, two hundred ninety-one".