387145 has 8 divisors (see below), whose sum is σ = 506880. Its totient is φ = 281520.

The previous prime is 387137. The next prime is 387151. The reversal of 387145 is 541783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 387145 - 2³ = 387137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3465 + ... + 3574.

It is an arithmetic number, because the mean of its divisors is an integer number (63360).

2³⁸⁷¹⁴⁵ is an apocalyptic number.

It is an amenable number.

387145 is a deficient number, since it is larger than the sum of its proper divisors (119735).

387145 is a wasteful number, since it uses less digits than its factorization.

387145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7055.

The product of its digits is 3360, while the sum is 28.

The square root of 387145 is about 622.2097717008. The cubic root of 387145 is about 72.8827165308.

It can be divided in two parts, 3871 and 45, that added together give a triangular number (3916 = T₈₈).

The spelling of 387145 in words is "three hundred eighty-seven thousand, one hundred forty-five".