877141081 has 2 divisors, whose sum is σ = 877141082. Its totient is φ = 877141080.

The previous prime is 877141049. The next prime is 877141091. The reversal of 877141081 is 180141778.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 615833856 + 261307225 = 24816^2 + 16165^2 .

It is a cyclic number.

It is not a de Polignac number, because 877141081 - 2⁵ = 877141049 is a prime.

It is a super-2 number, since 2×877141081² = 1538752951955697122, 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 877141081.

It is not a weakly prime, because it can be changed into another prime (877141091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438570540 + 438570541.

It is an arithmetic number, because the mean of its divisors is an integer number (438570541).

Almost surely, 2^877141081 is an apocalyptic number.

It is an amenable number.

877141081 is a deficient number, since it is larger than the sum of its proper divisors (1).

877141081 is an equidigital number, since it uses as much as digits as its factorization.

877141081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 37.

The square root of 877141081 is about 29616.5676775686. The cubic root of 877141081 is about 957.2450969963.

It can be divided in two parts, 8 and 77141081, that added together give a square (77141089 = 8783²).

The spelling of 877141081 in words is "eight hundred seventy-seven million, one hundred forty-one thousand, eighty-one".