1445575465 has 4 divisors (see below), whose sum is σ = 1734690564. Its totient is φ = 1156460368.

The previous prime is 1445575463. The next prime is 1445575513. The reversal of 1445575465 is 5645755441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5645755441 = 8831 ⋅639311.

It can be written as a sum of positive squares in 2 ways, for example, as 1141561369 + 304014096 = 33787^2 + 17436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445575465 - 2¹ = 1445575463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445575463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144557542 + ... + 144557551.

It is an arithmetic number, because the mean of its divisors is an integer number (433672641).

Almost surely, 2^1445575465 is an apocalyptic number.

It is an amenable number.

1445575465 is a deficient number, since it is larger than the sum of its proper divisors (289115099).

1445575465 is an equidigital number, since it uses as much as digits as its factorization.

1445575465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289115098.

The product of its digits is 1680000, while the sum is 46.

The square root of 1445575465 is about 38020.7241514414. The cubic root of 1445575465 is about 1130.6987781222.

The spelling of 1445575465 in words is "one billion, four hundred forty-five million, five hundred seventy-five thousand, four hundred sixty-five".