387155 has 4 divisors (see below), whose sum is σ = 464592. Its totient is φ = 309720.

The previous prime is 387151. The next prime is 387161. The reversal of 387155 is 551783.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 387155 - 2² = 387151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38711 + ... + 38720.

It is an arithmetic number, because the mean of its divisors is an integer number (116148).

2³⁸⁷¹⁵⁵ is an apocalyptic number.

387155 is a deficient number, since it is larger than the sum of its proper divisors (77437).

387155 is an equidigital number, since it uses as much as digits as its factorization.

387155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77436.

The product of its digits is 4200, while the sum is 29.

The square root of 387155 is about 622.2178075240. The cubic root of 387155 is about 72.8833440484.

The spelling of 387155 in words is "three hundred eighty-seven thousand, one hundred fifty-five".