1493943601 has 2 divisors, whose sum is σ = 1493943602. Its totient is φ = 1493943600.

The previous prime is 1493943593. The next prime is 1493943631. The reversal of 1493943601 is 1063493941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1488416400 + 5527201 = 38580^2 + 2351^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493943601 - 2³ = 1493943593 is a prime.

It is a super-3 number, since 3×1493943601³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1493943631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746971800 + 746971801.

It is an arithmetic number, because the mean of its divisors is an integer number (746971801).

Almost surely, 2^1493943601 is an apocalyptic number.

It is an amenable number.

1493943601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493943601 is an equidigital number, since it uses as much as digits as its factorization.

1493943601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 1493943601 is about 38651.5666047316. The cubic root of 1493943601 is about 1143.1715319166.

The spelling of 1493943601 in words is "one billion, four hundred ninety-three million, nine hundred forty-three thousand, six hundred one".