1012533209 has 8 divisors (see below), whose sum is σ = 1118707200. Its totient is φ = 911538496.

The previous prime is 1012533167. The next prime is 1012533217. The reversal of 1012533209 is 9023352101.

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

It is a cyclic number.

It is not a de Polignac number, because 1012533209 - 2⁸ = 1012532953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012533229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294409 + ... + 1295190.

It is an arithmetic number, because the mean of its divisors is an integer number (139838400).

Almost surely, 2^1012533209 is an apocalyptic number.

It is an amenable number.

1012533209 is a deficient number, since it is larger than the sum of its proper divisors (106173991).

1012533209 is a wasteful number, since it uses less digits than its factorization.

1012533209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589639.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 1012533209 is about 31820.3269782069. The cubic root of 1012533209 is about 1004.1604033730.

It can be divided in two parts, 10125 and 33209, that added together give a palindrome (43334).

The spelling of 1012533209 in words is "one billion, twelve million, five hundred thirty-three thousand, two hundred nine".