1020605153 has 8 divisors (see below), whose sum is σ = 1040802048. Its totient is φ = 1000443184.

The previous prime is 1020605123. The next prime is 1020605161. The reversal of 1020605153 is 3515060201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020605153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1020605123) 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, 54800 + ... + 71022.

It is an arithmetic number, because the mean of its divisors is an integer number (130100256).

Almost surely, 2^1020605153 is an apocalyptic number.

It is an amenable number.

1020605153 is a deficient number, since it is larger than the sum of its proper divisors (20196895).

1020605153 is a wasteful number, since it uses less digits than its factorization.

1020605153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17463.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1020605153 is about 31946.9114782634. The cubic root of 1020605153 is about 1006.8217423455.

Adding to 1020605153 its reverse (3515060201), we get a palindrome (4535665354).

The spelling of 1020605153 in words is "one billion, twenty million, six hundred five thousand, one hundred fifty-three".