1493597473 has 2 divisors, whose sum is σ = 1493597474. Its totient is φ = 1493597472.

The previous prime is 1493597419. The next prime is 1493597489. The reversal of 1493597473 is 3747953941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 751198464 + 742399009 = 27408^2 + 27247^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493597473 - 2⁹ = 1493596961 is a prime.

It is a super-2 number, since 2×1493597473² = 4461666822703971458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1493597473.

It is not a weakly prime, because it can be changed into another prime (1493597773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746798736 + 746798737.

It is an arithmetic number, because the mean of its divisors is an integer number (746798737).

Almost surely, 2^1493597473 is an apocalyptic number.

It is an amenable number.

1493597473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493597473 is an equidigital number, since it uses as much as digits as its factorization.

1493597473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2857680, while the sum is 52.

The square root of 1493597473 is about 38647.0888036861. The cubic root of 1493597473 is about 1143.0832389275.

The spelling of 1493597473 in words is "one billion, four hundred ninety-three million, five hundred ninety-seven thousand, four hundred seventy-three".