1053156220 has 12 divisors (see below), whose sum is σ = 2211628104. Its totient is φ = 421262480.

The previous prime is 1053156193. The next prime is 1053156227. The reversal of 1053156220 is 226513501.

It is a super-2 number, since 2×1053156220² = 2218276047449376800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053156227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26328886 + ... + 26328925.

It is an arithmetic number, because the mean of its divisors is an integer number (184302342).

Almost surely, 2^1053156220 is an apocalyptic number.

1053156220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1053156220 is an abundant number, since it is smaller than the sum of its proper divisors (1158471884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1053156220 is a wasteful number, since it uses less digits than its factorization.

1053156220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52657820 (or 52657818 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1053156220 is about 32452.3684805901. The cubic root of 1053156220 is about 1017.4137414375.

Adding to 1053156220 its reverse (226513501), we get a palindrome (1279669721).

The spelling of 1053156220 in words is "one billion, fifty-three million, one hundred fifty-six thousand, two hundred twenty".