1020855141 has 24 divisors (see below), whose sum is σ = 1543017216. Its totient is φ = 649581120.

The previous prime is 1020855139. The next prime is 1020855149. The reversal of 1020855141 is 1415580201.

1020855141 = 173³ + 174³ + ... + 265³.

1020855141 is a `hidden beast` number, since 102 + 0 + 8 + 551 + 4 + 1 = 666.

1020855141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020855141 - 2¹ = 1020855139 is a prime.

It is a super-2 number, since 2×1020855141² = 2084290437812259762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020855149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4695 + ... + 45428.

It is an arithmetic number, because the mean of its divisors is an integer number (64292384).

Almost surely, 2^1020855141 is an apocalyptic number.

It is an amenable number.

1020855141 is a deficient number, since it is larger than the sum of its proper divisors (522162075).

1020855141 is a wasteful number, since it uses less digits than its factorization.

1020855141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50233 (or 50230 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 1020855141 is about 31950.8237921967. The cubic root of 1020855141 is about 1006.9039395941.

The spelling of 1020855141 in words is "one billion, twenty million, eight hundred fifty-five thousand, one hundred forty-one".