1055775138 has 32 divisors (see below), whose sum is σ = 2329404480. Its totient is φ = 316335360.

The previous prime is 1055775137. The next prime is 1055775139. The reversal of 1055775138 is 8315775501.

It is an interprime number because it is at equal distance from previous prime (1055775137) and next prime (1055775139).

It is a super-2 number, since 2×1055775138² = 2229322284037838088, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1055775138.

It is not an unprimeable number, because it can be changed into a prime (1055775137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83995 + ... + 95742.

It is an arithmetic number, because the mean of its divisors is an integer number (72793890).

Almost surely, 2^1055775138 is an apocalyptic number.

1055775138 is an abundant number, since it is smaller than the sum of its proper divisors (1273629342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1055775138 is a wasteful number, since it uses less digits than its factorization.

1055775138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179842.

The product of its (nonzero) digits is 147000, while the sum is 42.

The square root of 1055775138 is about 32492.6936094870. The cubic root of 1055775138 is about 1018.2563886802.

The spelling of 1055775138 in words is "one billion, fifty-five million, seven hundred seventy-five thousand, one hundred thirty-eight".