3138085 has 4 divisors (see below), whose sum is σ = 3765708. Its totient is φ = 2510464.

The previous prime is 3138073. The next prime is 3138103. The reversal of 3138085 is 5808313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2365444 + 772641 = 1538^2 + 879^2 .

It is a cyclic number.

It is not a de Polignac number, because 3138085 - 2⁹ = 3137573 is a prime.

It is a Duffinian number.

It is a congruent 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, 313804 + ... + 313813.

It is an arithmetic number, because the mean of its divisors is an integer number (941427).

Almost surely, 2^3138085 is an apocalyptic number.

It is an amenable number.

3138085 is a deficient number, since it is larger than the sum of its proper divisors (627623).

3138085 is an equidigital number, since it uses as much as digits as its factorization.

3138085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627622.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 3138085 is about 1771.4640837454. The cubic root of 3138085 is about 146.4046602128.

The spelling of 3138085 in words is "three million, one hundred thirty-eight thousand, eighty-five".