1485729531 has 36 divisors (see below), whose sum is σ = 2535119496. Its totient is φ = 831168000.

The previous prime is 1485729527. The next prime is 1485729559. The reversal of 1485729531 is 1359275841.

1485729531 is a `hidden beast` number, since 1 + 48 + 5 + 72 + 9 + 531 = 666.

It is not a de Polignac number, because 1485729531 - 2² = 1485729527 is a prime.

It is a super-2 number, since 2×1485729531² = 4414784478570959922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1485729521) 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 35 ways as a sum of consecutive naturals, for example, 27670 + ... + 61131.

It is an arithmetic number, because the mean of its divisors is an integer number (70419986).

Almost surely, 2^1485729531 is an apocalyptic number.

1485729531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1485729531 is a deficient number, since it is larger than the sum of its proper divisors (1049389965).

1485729531 is a wasteful number, since it uses less digits than its factorization.

1485729531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88844 (or 88828 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 1485729531 is about 38545.1622256283. The cubic root of 1485729531 is about 1141.0725340208.

The spelling of 1485729531 in words is "one billion, four hundred eighty-five million, seven hundred twenty-nine thousand, five hundred thirty-one".