1056231699 has 4 divisors (see below), whose sum is σ = 1408308936. Its totient is φ = 704154464.

The previous prime is 1056231677. The next prime is 1056231727. The reversal of 1056231699 is 9961326501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1056231699 - 2¹⁵ = 1056198931 is a prime.

It is a super-2 number, since 2×1056231699² = 2231250803944853202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1056231699.

It is not an unprimeable number, because it can be changed into a prime (1056231899) 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 3 ways as a sum of consecutive naturals, for example, 176038614 + ... + 176038619.

It is an arithmetic number, because the mean of its divisors is an integer number (352077234).

Almost surely, 2^1056231699 is an apocalyptic number.

1056231699 is a deficient number, since it is larger than the sum of its proper divisors (352077237).

1056231699 is an equidigital number, since it uses as much as digits as its factorization.

1056231699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352077236.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 1056231699 is about 32499.7184449343. The cubic root of 1056231699 is about 1018.4031463060.

The spelling of 1056231699 in words is "one billion, fifty-six million, two hundred thirty-one thousand, six hundred ninety-nine".