1446139 has 8 divisors (see below), whose sum is σ = 1541808. Its totient is φ = 1351680.

The previous prime is 1446131. The next prime is 1446167. The reversal of 1446139 is 9316441.

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 1446139 - 2³ = 1446131 is a prime.

It is a super-4 number, since 4×1446139⁴ (a number of 26 digits) contains 4444 as substring.

It is a Duffinian number.

1446139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1446131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4204 + ... + 4534.

It is an arithmetic number, because the mean of its divisors is an integer number (192726).

2^1446139 is an apocalyptic number.

1446139 is a deficient number, since it is larger than the sum of its proper divisors (95669).

1446139 is a wasteful number, since it uses less digits than its factorization.

1446139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605.

The product of its digits is 2592, while the sum is 28.

The square root of 1446139 is about 1202.5551962384. Note that the first 3 decimals coincide. The cubic root of 1446139 is about 113.0845687449.

The spelling of 1446139 in words is "one million, four hundred forty-six thousand, one hundred thirty-nine".