1445971 has 2 divisors, whose sum is σ = 1445972. Its totient is φ = 1445970.

The previous prime is 1445963. The next prime is 1445981. The reversal of 1445971 is 1795441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1445971 - 2³ = 1445963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1445921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722985 + 722986.

It is an arithmetic number, because the mean of its divisors is an integer number (722986).

2^1445971 is an apocalyptic number.

1445971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445971 is an equidigital number, since it uses as much as digits as its factorization.

1445971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 1445971 is about 1202.4853429460. The cubic root of 1445971 is about 113.0801895109.

The spelling of 1445971 in words is "one million, four hundred forty-five thousand, nine hundred seventy-one".