1061233405 has 4 divisors (see below), whose sum is σ = 1273480092. Its totient is φ = 848986720.

The previous prime is 1061233387. The next prime is 1061233417. The reversal of 1061233405 is 5043321601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5043321601 = 19 ⋅265437979.

It can be written as a sum of positive squares in 2 ways, for example, as 169494361 + 891739044 = 13019^2 + 29862^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1061233405 is a prime.

It is a super-2 number, since 2×1061233405² = 2252432679775788050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1061233405.

It is a congruent number.

It is an unprimeable number.

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, 106123336 + ... + 106123345.

It is an arithmetic number, because the mean of its divisors is an integer number (318370023).

Almost surely, 2^1061233405 is an apocalyptic number.

It is an amenable number.

1061233405 is a deficient number, since it is larger than the sum of its proper divisors (212246687).

1061233405 is an equidigital number, since it uses as much as digits as its factorization.

1061233405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212246686.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1061233405 is about 32576.5775519774. The cubic root of 1061233405 is about 1020.0081394327.

The spelling of 1061233405 in words is "one billion, sixty-one million, two hundred thirty-three thousand, four hundred five".