1445272073 has 8 divisors (see below), whose sum is σ = 1652370048. Its totient is φ = 1238331744.

The previous prime is 1445272063. The next prime is 1445272079. The reversal of 1445272073 is 3702725441.

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 1445272073 - 2¹⁴ = 1445255689 is a prime.

It is a super-2 number, since 2×1445272073² = 4177622729987434658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1445272079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19061 + ... + 57042.

It is an arithmetic number, because the mean of its divisors is an integer number (206546256).

Almost surely, 2^1445272073 is an apocalyptic number.

It is an amenable number.

1445272073 is a deficient number, since it is larger than the sum of its proper divisors (207097975).

1445272073 is an equidigital number, since it uses as much as digits as its factorization.

1445272073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78823.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 1445272073 is about 38016.7341180170. The cubic root of 1445272073 is about 1130.6196703035.

The spelling of 1445272073 in words is "one billion, four hundred forty-five million, two hundred seventy-two thousand, seventy-three".