1445505461 has 6 divisors (see below), whose sum is σ = 1535537250. Its totient is φ = 1360475456.

The previous prime is 1445505433. The next prime is 1445505463. The reversal of 1445505461 is 1645055441.

It can be written as a sum of positive squares in 3 ways, for example, as 924524836 + 520980625 = 30406^2 + 22825^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1445505461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445505463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2500586 + ... + 2501163.

It is an arithmetic number, because the mean of its divisors is an integer number (255922875).

Almost surely, 2^1445505461 is an apocalyptic number.

It is an amenable number.

1445505461 is a deficient number, since it is larger than the sum of its proper divisors (90031789).

1445505461 is an equidigital number, since it uses as much as digits as its factorization.

1445505461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001783 (or 5001766 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 1445505461 is about 38019.8035371042. The cubic root of 1445505461 is about 1130.6805259412.

The spelling of 1445505461 in words is "one billion, four hundred forty-five million, five hundred five thousand, four hundred sixty-one".