1051453220 has 48 divisors (see below), whose sum is σ = 2258465328. Its totient is φ = 411041280.

The previous prime is 1051453199. The next prime is 1051453231. The reversal of 1051453220 is 223541501.

It can be written as a sum of positive squares in 8 ways, for example, as 8421604 + 1043031616 = 2902^2 + 32296^2 .

It is a super-2 number, since 2×1051453220² = 2211107747696736800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291830 + ... + 295410.

It is an arithmetic number, because the mean of its divisors is an integer number (47051361).

Almost surely, 2^1051453220 is an apocalyptic number.

1051453220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051453220 is an abundant number, since it is smaller than the sum of its proper divisors (1207012108).

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

1051453220 is a wasteful number, since it uses less digits than its factorization.

1051453220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3920 (or 3918 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1051453220 is about 32426.1194101299. The cubic root of 1051453220 is about 1016.8650446296.

Adding to 1051453220 its reverse (223541501), we get a palindrome (1274994721).

The spelling of 1051453220 in words is "one billion, fifty-one million, four hundred fifty-three thousand, two hundred twenty".