1445572471 has 20 divisors (see below), whose sum is σ = 1759789872. Its totient is φ = 1185144576.

The previous prime is 1445572451. The next prime is 1445572481. The reversal of 1445572471 is 1742755441.

It is not a de Polignac number, because 1445572471 - 2⁷ = 1445572343 is a prime.

It is a super-3 number, since 3×1445572471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445572411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42135 + ... + 68311.

Almost surely, 2^1445572471 is an apocalyptic number.

1445572471 is a deficient number, since it is larger than the sum of its proper divisors (314217401).

1445572471 is an frugal number, since it uses more digits than its factorization.

1445572471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26228 (or 26207 counting only the distinct ones).

The product of its digits is 156800, while the sum is 40.

The square root of 1445572471 is about 38020.6847781573. The cubic root of 1445572471 is about 1130.6979975070.

The spelling of 1445572471 in words is "one billion, four hundred forty-five million, five hundred seventy-two thousand, four hundred seventy-one".