1445530745 has 16 divisors (see below), whose sum is σ = 1771819920. Its totient is φ = 1131746304.

The previous prime is 1445530741. The next prime is 1445530787. The reversal of 1445530745 is 5470355441.

It can be written as a sum of positive squares in 8 ways, for example, as 43178041 + 1402352704 = 6571^2 + 37448^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445530745 - 2² = 1445530741 is a prime.

It is a super-3 number, since 3×1445530745³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1445530699 and 1445530708.

It is not an unprimeable number, because it can be changed into a prime (1445530741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101717 + ... + 115053.

It is an arithmetic number, because the mean of its divisors is an integer number (110738745).

Almost surely, 2^1445530745 is an apocalyptic number.

It is an amenable number.

1445530745 is a deficient number, since it is larger than the sum of its proper divisors (326289175).

1445530745 is a wasteful number, since it uses less digits than its factorization.

1445530745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13804.

The product of its (nonzero) digits is 168000, while the sum is 38.

The square root of 1445530745 is about 38020.1360465741. The cubic root of 1445530745 is about 1130.6871183203.

The spelling of 1445530745 in words is "one billion, four hundred forty-five million, five hundred thirty thousand, seven hundred forty-five".