145432123 has 2 divisors, whose sum is σ = 145432124. Its totient is φ = 145432122.

The previous prime is 145432121. The next prime is 145432169. The reversal of 145432123 is 321234541.

It is a weak prime.

It is an emirp because it is prime and its reverse (321234541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145432123 - 2¹ = 145432121 is a prime.

Together with 145432121, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (145432121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72716061 + 72716062.

It is an arithmetic number, because the mean of its divisors is an integer number (72716062).

Almost surely, 2^145432123 is an apocalyptic number.

145432123 is a deficient number, since it is larger than the sum of its proper divisors (1).

145432123 is an equidigital number, since it uses as much as digits as its factorization.

145432123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 145432123 is about 12059.5241614253. The cubic root of 145432123 is about 525.8801538463.

Adding to 145432123 its reverse (321234541), we get a palindrome (466666664).

The spelling of 145432123 in words is "one hundred forty-five million, four hundred thirty-two thousand, one hundred twenty-three".