1445171241974 has 4 divisors (see below), whose sum is σ = 2167756862964. Its totient is φ = 722585620986.

The previous prime is 1445171241973. The next prime is 1445171242007. The reversal of 1445171241974 is 4791421715441.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445171241973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361292810492 + ... + 361292810495.

It is an arithmetic number, because the mean of its divisors is an integer number (541939215741).

Almost surely, 2^{1445171241974} is an apocalyptic number.

1445171241974 is a deficient number, since it is larger than the sum of its proper divisors (722585620990).

1445171241974 is an equidigital number, since it uses as much as digits as its factorization.

1445171241974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722585620989.

The product of its digits is 1128960, while the sum is 50.

The spelling of 1445171241974 in words is "one trillion, four hundred forty-five billion, one hundred seventy-one million, two hundred forty-one thousand, nine hundred seventy-four".