877142155 has 4 divisors (see below), whose sum is σ = 1052570592. Its totient is φ = 701713720.

The previous prime is 877142143. The next prime is 877142171. The reversal of 877142155 is 551241778.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551241778 = 2 ⋅275620889.

It is not a de Polignac number, because 877142155 - 2⁷ = 877142027 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87714211 + ... + 87714220.

It is an arithmetic number, because the mean of its divisors is an integer number (263142648).

Almost surely, 2^877142155 is an apocalyptic number.

877142155 is a deficient number, since it is larger than the sum of its proper divisors (175428437).

877142155 is a wasteful number, since it uses less digits than its factorization.

877142155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175428436.

The product of its digits is 78400, while the sum is 40.

The square root of 877142155 is about 29616.5858093062. The cubic root of 877142155 is about 957.2454876902.

The spelling of 877142155 in words is "eight hundred seventy-seven million, one hundred forty-two thousand, one hundred fifty-five".