1445409841 has 2 divisors, whose sum is σ = 1445409842. Its totient is φ = 1445409840.

The previous prime is 1445409829. The next prime is 1445409871. The reversal of 1445409841 is 1489045441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 934830625 + 510579216 = 30575^2 + 22596^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445409841 - 2⁵ = 1445409809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1445409794 and 1445409803.

It is not a weakly prime, because it can be changed into another prime (1445409871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722704920 + 722704921.

It is an arithmetic number, because the mean of its divisors is an integer number (722704921).

Almost surely, 2^1445409841 is an apocalyptic number.

It is an amenable number.

1445409841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445409841 is an equidigital number, since it uses as much as digits as its factorization.

1445409841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 1445409841 is about 38018.5460137549. The cubic root of 1445409841 is about 1130.6555939344.

The spelling of 1445409841 in words is "one billion, four hundred forty-five million, four hundred nine thousand, eight hundred forty-one".