1013433561 has 12 divisors (see below), whose sum is σ = 1672969792. Its totient is φ = 579104856.

The previous prime is 1013433557. The next prime is 1013433581. The reversal of 1013433561 is 1653343101.

It is not a de Polignac number, because 1013433561 - 2² = 1013433557 is a prime.

It is a super-2 number, since 2×1013433561² = 2054095165122281442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013433581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8043061 + ... + 8043186.

Almost surely, 2^1013433561 is an apocalyptic number.

It is an amenable number.

1013433561 is a deficient number, since it is larger than the sum of its proper divisors (659536231).

1013433561 is a wasteful number, since it uses less digits than its factorization.

1013433561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16086260 (or 16086257 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1013433561 is about 31834.4712693646. The cubic root of 1013433561 is about 1004.4579508098.

Adding to 1013433561 its reverse (1653343101), we get a palindrome (2666776662).

The spelling of 1013433561 in words is "one billion, thirteen million, four hundred thirty-three thousand, five hundred sixty-one".