145004431775 has 24 divisors (see below), whose sum is σ = 209369215584. Its totient is φ = 97555536000.

The previous prime is 145004431723. The next prime is 145004431787. The reversal of 145004431775 is 577134400541.

It is not a de Polignac number, because 145004431775 - 2¹⁶ = 145004366239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7807676 + ... + 7826225.

It is an arithmetic number, because the mean of its divisors is an integer number (8723717316).

Almost surely, 2^145004431775 is an apocalyptic number.

145004431775 is a deficient number, since it is larger than the sum of its proper divisors (64364783809).

145004431775 is a wasteful number, since it uses less digits than its factorization.

145004431775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15633971 (or 15633966 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 145004431775 in words is "one hundred forty-five billion, four million, four hundred thirty-one thousand, seven hundred seventy-five".