1051805273 has 2 divisors, whose sum is σ = 1051805274. Its totient is φ = 1051805272.

The previous prime is 1051805269. The next prime is 1051805281. The reversal of 1051805273 is 3725081501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 528448144 + 523357129 = 22988^2 + 22877^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051805273 - 2² = 1051805269 is a prime.

It is a super-2 number, since 2×1051805273² = 2212588664621209058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1051805773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525902636 + 525902637.

It is an arithmetic number, because the mean of its divisors is an integer number (525902637).

Almost surely, 2^1051805273 is an apocalyptic number.

It is an amenable number.

1051805273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051805273 is an equidigital number, since it uses as much as digits as its factorization.

1051805273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 1051805273 is about 32431.5474962266. The cubic root of 1051805273 is about 1016.9785226349.

Adding to 1051805273 its reverse (3725081501), we get a palindrome (4776886774).

The spelling of 1051805273 in words is "one billion, fifty-one million, eight hundred five thousand, two hundred seventy-three".