387149 has 6 divisors (see below), whose sum is σ = 450414. Its totient is φ = 331800.

The previous prime is 387137. The next prime is 387151. The reversal of 387149 is 941783.

It can be written as a sum of positive squares in only one way, i.e., 354025 + 33124 = 595^2 + 182^2 .

It is a de Polignac number, because none of the positive numbers 2^k-387149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3902 + ... + 3999.

It is an arithmetic number, because the mean of its divisors is an integer number (75069).

2³⁸⁷¹⁴⁹ is an apocalyptic number.

It is an amenable number.

387149 is a deficient number, since it is larger than the sum of its proper divisors (63265).

387149 is an equidigital number, since it uses as much as digits as its factorization.

387149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7915 (or 7908 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 387149 is about 622.2129860426. The cubic root of 387149 is about 72.8829675391.

The spelling of 387149 in words is "three hundred eighty-seven thousand, one hundred forty-nine".