1494785517 has 8 divisors (see below), whose sum is σ = 1993349280. Its totient is φ = 996372720.

The previous prime is 1494785471. The next prime is 1494785531. The reversal of 1494785517 is 7155874941.

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

It is not a de Polignac number, because 1494785517 - 2⁸ = 1494785261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1494785517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1494785597) 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 7 ways as a sum of consecutive naturals, for example, 12159 + ... + 56012.

It is an arithmetic number, because the mean of its divisors is an integer number (249168660).

Almost surely, 2^1494785517 is an apocalyptic number.

It is an amenable number.

1494785517 is a deficient number, since it is larger than the sum of its proper divisors (498563763).

1494785517 is an equidigital number, since it uses as much as digits as its factorization.

1494785517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75483.

The product of its digits is 1411200, while the sum is 51.

The square root of 1494785517 is about 38662.4561687433. The cubic root of 1494785517 is about 1143.3862374029.

The spelling of 1494785517 in words is "one billion, four hundred ninety-four million, seven hundred eighty-five thousand, five hundred seventeen".