1445409829 has 2 divisors, whose sum is σ = 1445409830. Its totient is φ = 1445409828.

The previous prime is 1445409809. The next prime is 1445409841. The reversal of 1445409829 is 9289045441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1443240100 + 2169729 = 37990^2 + 1473^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445409829 - 2²³ = 1437021221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445409809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722704914 + 722704915.

It is an arithmetic number, because the mean of its divisors is an integer number (722704915).

Almost surely, 2^1445409829 is an apocalyptic number.

It is an amenable number.

1445409829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445409829 is an equidigital number, since it uses as much as digits as its factorization.

1445409829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 1445409829 is about 38018.5458559372. The cubic root of 1445409829 is about 1130.6555908055.

The spelling of 1445409829 in words is "one billion, four hundred forty-five million, four hundred nine thousand, eight hundred twenty-nine".