1493460191 has 2 divisors, whose sum is σ = 1493460192. Its totient is φ = 1493460190.

The previous prime is 1493460179. The next prime is 1493460197. The reversal of 1493460191 is 1910643941.

It is a strong prime.

It is an emirp because it is prime and its reverse (1910643941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1493460191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1493460197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746730095 + 746730096.

It is an arithmetic number, because the mean of its divisors is an integer number (746730096).

Almost surely, 2^1493460191 is an apocalyptic number.

1493460191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493460191 is an equidigital number, since it uses as much as digits as its factorization.

1493460191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1493460191 is about 38645.3126653156. The cubic root of 1493460191 is about 1143.0482162024.

The spelling of 1493460191 in words is "one billion, four hundred ninety-three million, four hundred sixty thousand, one hundred ninety-one".