1056367121 has 8 divisors (see below), whose sum is σ = 1064537640. Its totient is φ = 1048215168.

The previous prime is 1056367099. The next prime is 1056367141. The reversal of 1056367121 is 1217636501.

It can be written as a sum of positive squares in 4 ways, for example, as 574081600 + 482285521 = 23960^2 + 21961^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056367121 is a prime.

It is a super-2 number, since 2×1056367121² = 2231822988659657282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056367141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122855 + ... + 131171.

It is an arithmetic number, because the mean of its divisors is an integer number (133067205).

Almost surely, 2^1056367121 is an apocalyptic number.

It is an amenable number.

1056367121 is a deficient number, since it is larger than the sum of its proper divisors (8170519).

1056367121 is an equidigital number, since it uses as much as digits as its factorization.

1056367121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9283.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1056367121 is about 32501.8018115919. The cubic root of 1056367121 is about 1018.4466684162.

The spelling of 1056367121 in words is "one billion, fifty-six million, three hundred sixty-seven thousand, one hundred twenty-one".