1494278819 has 8 divisors (see below), whose sum is σ = 1631715840. Its totient is φ = 1357107400.

The previous prime is 1494278809. The next prime is 1494278827. The reversal of 1494278819 is 9188724941.

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

It is a de Polignac number, because none of the positive numbers 2^k-1494278819 is a prime.

It is a super-2 number, since 2×1494278819² = 4465738377824069522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1494278809) 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 7 ways as a sum of consecutive naturals, for example, 54539 + ... + 77220.

It is an arithmetic number, because the mean of its divisors is an integer number (203964480).

Almost surely, 2^1494278819 is an apocalyptic number.

1494278819 is a deficient number, since it is larger than the sum of its proper divisors (137437021).

1494278819 is a wasteful number, since it uses less digits than its factorization.

1494278819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132801.

The product of its digits is 1161216, while the sum is 53.

The square root of 1494278819 is about 38655.9027704696. The cubic root of 1494278819 is about 1143.2570289005.

The spelling of 1494278819 in words is "one billion, four hundred ninety-four million, two hundred seventy-eight thousand, eight hundred nineteen".