1494705439 has 4 divisors (see below), whose sum is σ = 1559692656. Its totient is φ = 1429718224.

The previous prime is 1494705437. The next prime is 1494705451. The reversal of 1494705439 is 9345074941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9345074941 = 37 ⋅252569593.

It is a cyclic number.

It is not a de Polignac number, because 1494705439 - 2¹ = 1494705437 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 (1494705431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32493574 + ... + 32493619.

It is an arithmetic number, because the mean of its divisors is an integer number (389923164).

Almost surely, 2^1494705439 is an apocalyptic number.

1494705439 is a deficient number, since it is larger than the sum of its proper divisors (64987217).

1494705439 is an equidigital number, since it uses as much as digits as its factorization.

1494705439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64987216.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 1494705439 is about 38661.4205507247. The cubic root of 1494705439 is about 1143.3658193748.

The spelling of 1494705439 in words is "one billion, four hundred ninety-four million, seven hundred five thousand, four hundred thirty-nine".