1494574729 has 2 divisors, whose sum is σ = 1494574730. Its totient is φ = 1494574728.

The previous prime is 1494574727. The next prime is 1494574777. The reversal of 1494574729 is 9274754941.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1434667129 + 59907600 = 37877^2 + 7740^2 .

It is a cyclic number.

It is not a de Polignac number, because 1494574729 - 2¹ = 1494574727 is a prime.

Together with 1494574727, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1494574721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747287364 + 747287365.

It is an arithmetic number, because the mean of its divisors is an integer number (747287365).

Almost surely, 2^1494574729 is an apocalyptic number.

It is an amenable number.

1494574729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1494574729 is an equidigital number, since it uses as much as digits as its factorization.

1494574729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 52.

The square root of 1494574729 is about 38659.7300688973. The cubic root of 1494574729 is about 1143.3324897972.

The spelling of 1494574729 in words is "one billion, four hundred ninety-four million, five hundred seventy-four thousand, seven hundred twenty-nine".