2887142155 has 4 divisors (see below), whose sum is σ = 3464570592. Its totient is φ = 2309713720.

The previous prime is 2887142149. The next prime is 2887142171. The reversal of 2887142155 is 5512417882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5512417882 = 2 ⋅2756208941.

It is a de Polignac number, because none of the positive numbers 2^k-2887142155 is a prime.

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, 288714211 + ... + 288714220.

It is an arithmetic number, because the mean of its divisors is an integer number (866142648).

Almost surely, 2^2887142155 is an apocalyptic number.

2887142155 is a deficient number, since it is larger than the sum of its proper divisors (577428437).

2887142155 is an equidigital number, since it uses as much as digits as its factorization.

2887142155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577428436.

The product of its digits is 179200, while the sum is 43.

The square root of 2887142155 is about 53732.1333561213. The cubic root of 2887142155 is about 1423.9324566275.

The spelling of 2887142155 in words is "two billion, eight hundred eighty-seven million, one hundred forty-two thousand, one hundred fifty-five".