1494139 has 4 divisors (see below), whose sum is σ = 1497024. Its totient is φ = 1491256.

The previous prime is 1494137. The next prime is 1494151. The reversal of 1494139 is 9314941.

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

It is a cyclic number.

It is not a de Polignac number, because 1494139 - 2¹ = 1494137 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1494139.

It is not an unprimeable number, because it can be changed into a prime (1494133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427 + ... + 1780.

It is an arithmetic number, because the mean of its divisors is an integer number (374256).

2^1494139 is an apocalyptic number.

1494139 is a deficient number, since it is larger than the sum of its proper divisors (2885).

1494139 is an equidigital number, since it uses as much as digits as its factorization.

1494139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2884.

The product of its digits is 3888, while the sum is 31.

The square root of 1494139 is about 1222.3497862723. The cubic root of 1494139 is about 114.3221369772.

The spelling of 1494139 in words is "one million, four hundred ninety-four thousand, one hundred thirty-nine".