1493641 has 2 divisors, whose sum is σ = 1493642. Its totient is φ = 1493640.

The previous prime is 1493633. The next prime is 1493651. The reversal of 1493641 is 1463941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1452025 + 41616 = 1205^2 + 204^2 .

It is an emirp because it is prime and its reverse (1463941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1493641 - 2³ = 1493633 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1493621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746820 + 746821.

It is an arithmetic number, because the mean of its divisors is an integer number (746821).

2^1493641 is an apocalyptic number.

It is an amenable number.

1493641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493641 is an equidigital number, since it uses as much as digits as its factorization.

1493641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 1493641 is about 1222.1460632838. The cubic root of 1493641 is about 114.3094342879.

The spelling of 1493641 in words is "one million, four hundred ninety-three thousand, six hundred forty-one".