1445456513431 has 6 divisors (see below), whose sum is σ = 1681449413640. Its totient is φ = 1238962725756.

The previous prime is 1445456513407. The next prime is 1445456513447. The reversal of 1445456513431 is 1343156545441.

It is not a de Polignac number, because 1445456513431 - 2⁵ = 1445456513399 is a prime.

It is a super-2 number, since 2×1445456513431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445456514431) 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 5 ways as a sum of consecutive naturals, for example, 14749556211 + ... + 14749556308.

It is an arithmetic number, because the mean of its divisors is an integer number (280241568940).

Almost surely, 2^{1445456513431} is an apocalyptic number.

1445456513431 is a deficient number, since it is larger than the sum of its proper divisors (235992900209).

1445456513431 is an equidigital number, since it uses as much as digits as its factorization.

1445456513431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29499112533 (or 29499112526 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 46.

The spelling of 1445456513431 in words is "one trillion, four hundred forty-five billion, four hundred fifty-six million, five hundred thirteen thousand, four hundred thirty-one".