1055161605 has 32 divisors (see below), whose sum is σ = 1720051200. Its totient is φ = 552191552.

The previous prime is 1055161567. The next prime is 1055161619. The reversal of 1055161605 is 5061615501.

It is a cyclic number.

It is not a de Polignac number, because 1055161605 - 2¹³ = 1055153413 is a prime.

It is a super-2 number, since 2×1055161605² = 2226732025332352050, which contains 22 as substring.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 837466 + ... + 838724.

It is an arithmetic number, because the mean of its divisors is an integer number (53751600).

Almost surely, 2^1055161605 is an apocalyptic number.

1055161605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1055161605 is a deficient number, since it is larger than the sum of its proper divisors (664889595).

1055161605 is a wasteful number, since it uses less digits than its factorization.

1055161605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 1055161605 is about 32483.2511457828. The cubic root of 1055161605 is about 1018.0591071036.

The spelling of 1055161605 in words is "one billion, fifty-five million, one hundred sixty-one thousand, six hundred five".