1494343729 has 2 divisors, whose sum is σ = 1494343730. Its totient is φ = 1494343728.

The previous prime is 1494343727. The next prime is 1494343751. The reversal of 1494343729 is 9273434941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 798175504 + 696168225 = 28252^2 + 26385^2 .

It is a cyclic number.

It is not a de Polignac number, because 1494343729 - 2¹ = 1494343727 is a prime.

Together with 1494343727, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1494343723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747171864 + 747171865.

It is an arithmetic number, because the mean of its divisors is an integer number (747171865).

Almost surely, 2^1494343729 is an apocalyptic number.

It is an amenable number.

1494343729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1494343729 is an equidigital number, since it uses as much as digits as its factorization.

1494343729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 46.

The square root of 1494343729 is about 38656.7423485218. The cubic root of 1494343729 is about 1143.2735826472.

It can be divided in two parts, 149 and 4343729, that added together give a triangular number (4343878 = T₂₉₄₇).

The spelling of 1494343729 in words is "one billion, four hundred ninety-four million, three hundred forty-three thousand, seven hundred twenty-nine".