1534955863 has 16 divisors (see below), whose sum is σ = 1782535680. Its totient is φ = 1294498656.

The previous prime is 1534955813. The next prime is 1534955867. The reversal of 1534955863 is 3685594351.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1534955863 - 2²⁹ = 998084951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1534955867) 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 15 ways as a sum of consecutive naturals, for example, 575070 + ... + 577732.

It is an arithmetic number, because the mean of its divisors is an integer number (111408480).

Almost surely, 2^1534955863 is an apocalyptic number.

1534955863 is a deficient number, since it is larger than the sum of its proper divisors (247579817).

1534955863 is a wasteful number, since it uses less digits than its factorization.

1534955863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966.

The product of its digits is 1944000, while the sum is 49.

The square root of 1534955863 is about 39178.5127716712. The cubic root of 1534955863 is about 1153.5381549447.

The spelling of 1534955863 in words is "one billion, five hundred thirty-four million, nine hundred fifty-five thousand, eight hundred sixty-three".