670149 has 12 divisors (see below), whose sum is σ = 1019200. Its totient is φ = 423144.

The previous prime is 670147. The next prime is 670177. The reversal of 670149 is 941076.

670149 is nontrivially palindromic in base 2.

670149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 670149 - 2¹ = 670147 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1789 + ... + 2130.

2⁶⁷⁰¹⁴⁹ is an apocalyptic number.

It is an amenable number.

670149 is a deficient number, since it is larger than the sum of its proper divisors (349051).

670149 is a wasteful number, since it uses less digits than its factorization.

670149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944 (or 3941 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 670149 is about 818.6262883636. The cubic root of 670149 is about 87.5098873181.

The spelling of 670149 in words is "six hundred seventy thousand, one hundred forty-nine".