1463136491 has 2 divisors, whose sum is σ = 1463136492. Its totient is φ = 1463136490.

The previous prime is 1463136443. The next prime is 1463136503. The reversal of 1463136491 is 1946313641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1463136491 - 2¹⁰ = 1463135467 is a prime.

It is not a weakly prime, because it can be changed into another prime (1463136431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 731568245 + 731568246.

It is an arithmetic number, because the mean of its divisors is an integer number (731568246).

Almost surely, 2^1463136491 is an apocalyptic number.

1463136491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1463136491 is an equidigital number, since it uses as much as digits as its factorization.

1463136491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 1463136491 is about 38250.9671903862. The cubic root of 1463136491 is about 1135.2589836405.

The spelling of 1463136491 in words is "one billion, four hundred sixty-three million, one hundred thirty-six thousand, four hundred ninety-one".