1447457189 has 8 divisors (see below), whose sum is σ = 1475356032. Its totient is φ = 1419580240.

The previous prime is 1447457173. The next prime is 1447457201. The reversal of 1447457189 is 9817547441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1447457189 - 2⁴ = 1447457173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1447457119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203792 + ... + 210774.

It is an arithmetic number, because the mean of its divisors is an integer number (184419504).

Almost surely, 2^1447457189 is an apocalyptic number.

It is an amenable number.

1447457189 is a deficient number, since it is larger than the sum of its proper divisors (27898843).

1447457189 is an equidigital number, since it uses as much as digits as its factorization.

1447457189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10947.

The product of its digits is 1128960, while the sum is 50.

The square root of 1447457189 is about 38045.4621341363. The cubic root of 1447457189 is about 1131.1891803978.

The spelling of 1447457189 in words is "one billion, four hundred forty-seven million, four hundred fifty-seven thousand, one hundred eighty-nine".