1056012785 has 8 divisors (see below), whose sum is σ = 1287989736. Its totient is φ = 830960640.

The previous prime is 1056012781. The next prime is 1056012809. The reversal of 1056012785 is 5872106501.

It can be written as a sum of positive squares in 4 ways, for example, as 79637776 + 976375009 = 8924^2 + 31247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1056012785 - 2² = 1056012781 is a prime.

It is a super-2 number, since 2×1056012785² = 2230326004166912450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1056012781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730864 + ... + 1731473.

It is an arithmetic number, because the mean of its divisors is an integer number (160998717).

Almost surely, 2^1056012785 is an apocalyptic number.

It is an amenable number.

1056012785 is a deficient number, since it is larger than the sum of its proper divisors (231976951).

1056012785 is an equidigital number, since it uses as much as digits as its factorization.

1056012785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462403.

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 1056012785 is about 32496.3503335375. The cubic root of 1056012785 is about 1018.3327835530.

The spelling of 1056012785 in words is "one billion, fifty-six million, twelve thousand, seven hundred eighty-five".