1057227081 has 4 divisors (see below), whose sum is σ = 1409636112. Its totient is φ = 704818052.

The previous prime is 1057227049. The next prime is 1057227109. The reversal of 1057227081 is 1807227501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1057227081 - 2⁵ = 1057227049 is a prime.

It is a super-2 number, since 2×1057227081² = 2235458201599561122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057227181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176204511 + ... + 176204516.

It is an arithmetic number, because the mean of its divisors is an integer number (352409028).

Almost surely, 2^1057227081 is an apocalyptic number.

It is an amenable number.

1057227081 is a deficient number, since it is larger than the sum of its proper divisors (352409031).

1057227081 is an equidigital number, since it uses as much as digits as its factorization.

1057227081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352409030.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 1057227081 is about 32515.0285406610. The cubic root of 1057227081 is about 1018.7229567840.

The spelling of 1057227081 in words is "one billion, fifty-seven million, two hundred twenty-seven thousand, eighty-one".