1461538463 has 24 divisors (see below), whose sum is σ = 1923166080. Its totient is φ = 1078900560.

The previous prime is 1461538447. The next prime is 1461538471. The reversal of 1461538463 is 3648351641.

It is not a de Polignac number, because 1461538463 - 2⁴ = 1461538447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1461538463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461538423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1508 + ... + 54086.

It is an arithmetic number, because the mean of its divisors is an integer number (80131920).

Almost surely, 2^1461538463 is an apocalyptic number.

1461538463 is a deficient number, since it is larger than the sum of its proper divisors (461627617).

1461538463 is a wasteful number, since it uses less digits than its factorization.

1461538463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52635 (or 52616 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 1461538463 is about 38230.0727569279. The cubic root of 1461538463 is about 1134.8455256270.

The spelling of 1461538463 in words is "one billion, four hundred sixty-one million, five hundred thirty-eight thousand, four hundred sixty-three".