145223119 has 2 divisors, whose sum is σ = 145223120. Its totient is φ = 145223118.

The previous prime is 145223087. The next prime is 145223149. The reversal of 145223119 is 911322541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145223119 - 2⁵ = 145223087 is a prime.

It is a super-2 number, since 2×145223119² = 42179508584176322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145223149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72611559 + 72611560.

It is an arithmetic number, because the mean of its divisors is an integer number (72611560).

Almost surely, 2^145223119 is an apocalyptic number.

145223119 is a deficient number, since it is larger than the sum of its proper divisors (1).

145223119 is an equidigital number, since it uses as much as digits as its factorization.

145223119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 145223119 is about 12050.8555297954. The cubic root of 145223119 is about 525.6281147337.

The spelling of 145223119 in words is "one hundred forty-five million, two hundred twenty-three thousand, one hundred nineteen".