1445532751461 has 4 divisors (see below), whose sum is σ = 1927377001952. Its totient is φ = 963688500972.

The previous prime is 1445532751447. The next prime is 1445532751477. The reversal of 1445532751461 is 1641572355441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1445532751461 - 2¹¹ = 1445532749413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1445532751461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445532751441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240922125241 + ... + 240922125246.

It is an arithmetic number, because the mean of its divisors is an integer number (481844250488).

Almost surely, 2^{1445532751461} is an apocalyptic number.

It is an amenable number.

1445532751461 is a deficient number, since it is larger than the sum of its proper divisors (481844250491).

1445532751461 is an equidigital number, since it uses as much as digits as its factorization.

1445532751461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481844250490.

The product of its digits is 2016000, while the sum is 48.

The spelling of 1445532751461 in words is "one trillion, four hundred forty-five billion, five hundred thirty-two million, seven hundred fifty-one thousand, four hundred sixty-one".