1061975205 has 80 divisors (see below), whose sum is σ = 2000972160. Its totient is φ = 537812352.

The previous prime is 1061975191. The next prime is 1061975207. The reversal of 1061975205 is 5025791601.

1061975205 is a `hidden beast` number, since 10 + 619 + 7 + 5 + 20 + 5 = 666.

It is not a de Polignac number, because 1061975205 - 2¹⁰ = 1061974181 is a prime.

It is a super-2 number, since 2×1061975205² = 2255582672069584050, 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 1061975205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061975207) 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 79 ways as a sum of consecutive naturals, for example, 1611166 + ... + 1611824.

It is an arithmetic number, because the mean of its divisors is an integer number (25012152).

Almost surely, 2^1061975205 is an apocalyptic number.

1061975205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1061975205 is a deficient number, since it is larger than the sum of its proper divisors (938996955).

1061975205 is a wasteful number, since it uses less digits than its factorization.

1061975205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 36.

The square root of 1061975205 is about 32587.9610439193. The cubic root of 1061975205 is about 1020.2457452869.

The spelling of 1061975205 in words is "one billion, sixty-one million, nine hundred seventy-five thousand, two hundred five".