1533972085 has 8 divisors (see below), whose sum is σ = 1890517176. Its totient is φ = 1194010560.

The previous prime is 1533972071. The next prime is 1533972103. The reversal of 1533972085 is 5802793351.

It can be written as a sum of positive squares in 4 ways, for example, as 669670884 + 864301201 = 25878^2 + 29399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1533972085 - 2⁹ = 1533971573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4145686 + ... + 4146055.

It is an arithmetic number, because the mean of its divisors is an integer number (236314647).

Almost surely, 2^1533972085 is an apocalyptic number.

It is an amenable number.

1533972085 is a deficient number, since it is larger than the sum of its proper divisors (356545091).

1533972085 is an equidigital number, since it uses as much as digits as its factorization.

1533972085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8291783.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 1533972085 is about 39165.9556885824. The cubic root of 1533972085 is about 1153.2916618662.

The spelling of 1533972085 in words is "one billion, five hundred thirty-three million, nine hundred seventy-two thousand, eighty-five".