387138 has 16 divisors (see below), whose sum is σ = 782496. Its totient is φ = 127680.

The previous prime is 387137. The next prime is 387151. The reversal of 387138 is 831783.

It is not an unprimeable number, because it can be changed into a prime (387137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393 + ... + 963.

It is an arithmetic number, because the mean of its divisors is an integer number (48906).

2³⁸⁷¹³⁸ is an apocalyptic number.

387138 is an abundant number, since it is smaller than the sum of its proper divisors (395358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387138 is a wasteful number, since it uses less digits than its factorization.

387138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689.

The product of its digits is 4032, while the sum is 30.

The square root of 387138 is about 622.2041465628. The cubic root of 387138 is about 72.8822772621.

Adding to 387138 its product of digits (4032), we get a triangular number (391170 = T₈₈₄).

It can be divided in two parts, 387 and 138, that added together give a palindrome (525).

The spelling of 387138 in words is "three hundred eighty-seven thousand, one hundred thirty-eight".