1445007871 has 4 divisors (see below), whose sum is σ = 1530008352. Its totient is φ = 1360007392.

The previous prime is 1445007841. The next prime is 1445007887. The reversal of 1445007871 is 1787005441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1445007871 - 2⁹ = 1445007359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1445007871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445007841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42500215 + ... + 42500248.

It is an arithmetic number, because the mean of its divisors is an integer number (382502088).

Almost surely, 2^1445007871 is an apocalyptic number.

1445007871 is a deficient number, since it is larger than the sum of its proper divisors (85000481).

1445007871 is an equidigital number, since it uses as much as digits as its factorization.

1445007871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85000480.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 1445007871 is about 38013.2591473028. The cubic root of 1445007871 is about 1130.5507720461.

The spelling of 1445007871 in words is "one billion, four hundred forty-five million, seven thousand, eight hundred seventy-one".