606139 has 4 divisors (see below), whose sum is σ = 608400. Its totient is φ = 603880.

The previous prime is 606131. The next prime is 606173. The reversal of 606139 is 931606.

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

It is a cyclic number.

It is not a de Polignac number, because 606139 - 2³ = 606131 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (606131) 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, 664 + ... + 1285.

It is an arithmetic number, because the mean of its divisors is an integer number (152100).

2⁶⁰⁶¹³⁹ is an apocalyptic number.

606139 is a deficient number, since it is larger than the sum of its proper divisors (2261).

606139 is a wasteful number, since it uses less digits than its factorization.

606139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 606139 is about 778.5492919527. The cubic root of 606139 is about 84.6299483938.

The spelling of 606139 in words is "six hundred six thousand, one hundred thirty-nine".