1004561653 has 4 divisors (see below), whose sum is σ = 1039201740. Its totient is φ = 969921568.

The previous prime is 1004561651. The next prime is 1004561681. The reversal of 1004561653 is 3561654001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3561654001 = 101 ⋅35263901.

It can be written as a sum of positive squares in 2 ways, for example, as 466646404 + 537915249 = 21602^2 + 23193^2 .

It is a cyclic number.

It is not a de Polignac number, because 1004561653 - 2¹ = 1004561651 is a prime.

It is a super-2 number, since 2×1004561653² = 2018288229356184818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004561651) 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 3 ways as a sum of consecutive naturals, for example, 17320000 + ... + 17320057.

It is an arithmetic number, because the mean of its divisors is an integer number (259800435).

Almost surely, 2^1004561653 is an apocalyptic number.

It is an amenable number.

1004561653 is a deficient number, since it is larger than the sum of its proper divisors (34640087).

1004561653 is an equidigital number, since it uses as much as digits as its factorization.

1004561653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34640086.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1004561653 is about 31694.8206021110. The cubic root of 1004561653 is about 1001.5182447663.

The spelling of 1004561653 in words is "one billion, four million, five hundred sixty-one thousand, six hundred fifty-three".