1446505139 has 4 divisors (see below), whose sum is σ = 1470218400. Its totient is φ = 1422791880.

The previous prime is 1446505127. The next prime is 1446505171. The reversal of 1446505139 is 9315056441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1446505139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1446505199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11856539 + ... + 11856660.

It is an arithmetic number, because the mean of its divisors is an integer number (367554600).

Almost surely, 2^1446505139 is an apocalyptic number.

1446505139 is a deficient number, since it is larger than the sum of its proper divisors (23713261).

1446505139 is an equidigital number, since it uses as much as digits as its factorization.

1446505139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23713260.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 1446505139 is about 38032.9480713762. The cubic root of 1446505139 is about 1130.9411166736.

The spelling of 1446505139 in words is "one billion, four hundred forty-six million, five hundred five thousand, one hundred thirty-nine".