1072126885 has 4 divisors (see below), whose sum is σ = 1286552268. Its totient is φ = 857701504.

The previous prime is 1072126883. The next prime is 1072126901. The reversal of 1072126885 is 5886212701.

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

It can be written as a sum of positive squares in 2 ways, for example, as 812079009 + 260047876 = 28497^2 + 16126^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072126885 - 2¹ = 1072126883 is a prime.

It is a super-2 number, since 2×1072126885² = 2298912115079606450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072126883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107212684 + ... + 107212693.

It is an arithmetic number, because the mean of its divisors is an integer number (321638067).

Almost surely, 2^1072126885 is an apocalyptic number.

It is an amenable number.

1072126885 is a deficient number, since it is larger than the sum of its proper divisors (214425383).

1072126885 is an equidigital number, since it uses as much as digits as its factorization.

1072126885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214425382.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 1072126885 is about 32743.3487138991. The cubic root of 1072126885 is about 1023.4863671253.

The spelling of 1072126885 in words is "one billion, seventy-two million, one hundred twenty-six thousand, eight hundred eighty-five".