145023451123405 has 16 divisors (see below), whose sum is σ = 179533091695104. Its totient is φ = 112376916354240.

The previous prime is 145023451123391. The next prime is 145023451123423. The reversal of 145023451123405 is 504321154320541.

It is not a de Polignac number, because 145023451123405 - 2⁵ = 145023451123373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1757605711 + ... + 1757688220.

It is an arithmetic number, because the mean of its divisors is an integer number (11220818230944).

Almost surely, 2^{145023451123405} is an apocalyptic number.

It is an amenable number.

145023451123405 is a deficient number, since it is larger than the sum of its proper divisors (34509640571699).

145023451123405 is a wasteful number, since it uses less digits than its factorization.

145023451123405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515294196.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 145023451123405 in words is "one hundred forty-five trillion, twenty-three billion, four hundred fifty-one million, one hundred twenty-three thousand, four hundred five".