1445749663 has 8 divisors (see below), whose sum is σ = 1510272000. Its totient is φ = 1381366008.

The previous prime is 1445749639. The next prime is 1445749687. The reversal of 1445749663 is 3669475441.

It is an interprime number because it is at equal distance from previous prime (1445749639) and next prime (1445749687).

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

It is a cyclic number.

It is not a de Polignac number, because 1445749663 - 2¹³ = 1445741471 is a prime.

It is a super-2 number, since 2×1445749663² = 4180384176129227138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445749163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13063 + ... + 55336.

It is an arithmetic number, because the mean of its divisors is an integer number (188784000).

Almost surely, 2^1445749663 is an apocalyptic number.

1445749663 is a deficient number, since it is larger than the sum of its proper divisors (64522337).

1445749663 is an equidigital number, since it uses as much as digits as its factorization.

1445749663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69341.

The product of its digits is 2177280, while the sum is 49.

The square root of 1445749663 is about 38023.0149120240. The cubic root of 1445749663 is about 1130.7441943041.

The spelling of 1445749663 in words is "one billion, four hundred forty-five million, seven hundred forty-nine thousand, six hundred sixty-three".