145104523 has 2 divisors, whose sum is σ = 145104524. Its totient is φ = 145104522.

The previous prime is 145104517. The next prime is 145104559. The reversal of 145104523 is 325401541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145104523 is a prime.

It is not a weakly prime, because it can be changed into another prime (145104923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72552261 + 72552262.

It is an arithmetic number, because the mean of its divisors is an integer number (72552262).

Almost surely, 2^145104523 is an apocalyptic number.

145104523 is a deficient number, since it is larger than the sum of its proper divisors (1).

145104523 is an equidigital number, since it uses as much as digits as its factorization.

145104523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 145104523 is about 12045.9338782844. The cubic root of 145104523 is about 525.4849915881.

The spelling of 145104523 in words is "one hundred forty-five million, one hundred four thousand, five hundred twenty-three".