1051273280 has 28 divisors (see below), whose sum is σ = 2503345260. Its totient is φ = 420509184.

The previous prime is 1051273273. The next prime is 1051273291. The reversal of 1051273280 is 823721501.

It can be written as a sum of positive squares in 2 ways, for example, as 743761984 + 307511296 = 27272^2 + 17536^2 .

It is a super-2 number, since 2×1051273280² = 2210351018483916800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642295 + ... + 1642934.

Almost surely, 2^1051273280 is an apocalyptic number.

1051273280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051273280 is an abundant number, since it is smaller than the sum of its proper divisors (1452071980).

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

1051273280 is an equidigital number, since it uses as much as digits as its factorization.

1051273280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285246 (or 3285236 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1051273280 is about 32423.3446763285. The cubic root of 1051273280 is about 1016.8070343979.

Adding to 1051273280 its reverse (823721501), we get a palindrome (1874994781).

The spelling of 1051273280 in words is "one billion, fifty-one million, two hundred seventy-three thousand, two hundred eighty".