1445532513 has 8 divisors (see below), whose sum is σ = 1940141376. Its totient is φ = 957306000.

The previous prime is 1445532493. The next prime is 1445532541. The reversal of 1445532513 is 3152355441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1445532513 - 2²² = 1441338209 is a prime.

It is a super-2 number, since 2×1445532513² = 4179128492280190338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1445532553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1595058 + ... + 1595963.

It is an arithmetic number, because the mean of its divisors is an integer number (242517672).

Almost surely, 2^1445532513 is an apocalyptic number.

It is an amenable number.

1445532513 is a deficient number, since it is larger than the sum of its proper divisors (494608863).

1445532513 is a wasteful number, since it uses less digits than its factorization.

1445532513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191175.

The product of its digits is 36000, while the sum is 33.

The square root of 1445532513 is about 38020.1592974043. The cubic root of 1445532513 is about 1130.6875792938.

Adding to 1445532513 its reverse (3152355441), we get a palindrome (4597887954).

The spelling of 1445532513 in words is "one billion, four hundred forty-five million, five hundred thirty-two thousand, five hundred thirteen".