1494178613 has 2 divisors, whose sum is σ = 1494178614. Its totient is φ = 1494178612.

The previous prime is 1494178561. The next prime is 1494178657. The reversal of 1494178613 is 3168714941.

It is an a-pointer prime, because the next prime (1494178657) can be obtained adding 1494178613 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 893830609 + 600348004 = 29897^2 + 24502^2 .

It is a cyclic number.

It is not a de Polignac number, because 1494178613 - 2²⁴ = 1477401397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1494178313) 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 as a sum of consecutive naturals, namely, 747089306 + 747089307.

It is an arithmetic number, because the mean of its divisors is an integer number (747089307).

Almost surely, 2^1494178613 is an apocalyptic number.

It is an amenable number.

1494178613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1494178613 is an equidigital number, since it uses as much as digits as its factorization.

1494178613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 44.

The square root of 1494178613 is about 38654.6066206862. The cubic root of 1494178613 is about 1143.2314728099.

The spelling of 1494178613 in words is "one billion, four hundred ninety-four million, one hundred seventy-eight thousand, six hundred thirteen".