145255223 has 2 divisors, whose sum is σ = 145255224. Its totient is φ = 145255222.

The previous prime is 145255193. The next prime is 145255237. The reversal of 145255223 is 322552541.

145255223 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 145255223 - 2¹⁰ = 145254199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145255273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72627611 + 72627612.

It is an arithmetic number, because the mean of its divisors is an integer number (72627612).

Almost surely, 2^145255223 is an apocalyptic number.

145255223 is a deficient number, since it is larger than the sum of its proper divisors (1).

145255223 is an equidigital number, since it uses as much as digits as its factorization.

145255223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12000, while the sum is 29.

The square root of 145255223 is about 12052.1874777984. The cubic root of 145255223 is about 525.6668448426. Note that the first 3 decimals are identical.

The spelling of 145255223 in words is "one hundred forty-five million, two hundred fifty-five thousand, two hundred twenty-three".