145235023 has 2 divisors, whose sum is σ = 145235024. Its totient is φ = 145235022.

The previous prime is 145235021. The next prime is 145235039. The reversal of 145235023 is 320532541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145235023 - 2¹ = 145235021 is a prime.

Together with 145235021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145235021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72617511 + 72617512.

It is an arithmetic number, because the mean of its divisors is an integer number (72617512).

Almost surely, 2^145235023 is an apocalyptic number.

145235023 is a deficient number, since it is larger than the sum of its proper divisors (1).

145235023 is an equidigital number, since it uses as much as digits as its factorization.

145235023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 145235023 is about 12051.3494265165. The cubic root of 145235023 is about 525.6424763270.

Adding to 145235023 its reverse (320532541), we get a palindrome (465767564).

The spelling of 145235023 in words is "one hundred forty-five million, two hundred thirty-five thousand, twenty-three".