1020133653 has 16 divisors (see below), whose sum is σ = 1695806976. Its totient is φ = 529939440.

The previous prime is 1020133643. The next prime is 1020133657. The reversal of 1020133653 is 3563310201.

It is a happy number.

It is not a de Polignac number, because 1020133653 - 2⁶ = 1020133589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020133657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2207851 + ... + 2208312.

It is an arithmetic number, because the mean of its divisors is an integer number (105987936).

Almost surely, 2^1020133653 is an apocalyptic number.

It is an amenable number.

1020133653 is a deficient number, since it is larger than the sum of its proper divisors (675673323).

1020133653 is a wasteful number, since it uses less digits than its factorization.

1020133653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416184.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 1020133653 is about 31939.5311956829. The cubic root of 1020133653 is about 1006.6666743540. Note that the first 4 decimals are identical.

Adding to 1020133653 its reverse (3563310201), we get a palindrome (4583443854).

The spelling of 1020133653 in words is "one billion, twenty million, one hundred thirty-three thousand, six hundred fifty-three".