670154 has 4 divisors (see below), whose sum is σ = 1005234. Its totient is φ = 335076.

The previous prime is 670147. The next prime is 670177. The reversal of 670154 is 451076.

670154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 664225 + 5929 = 815^2 + 77^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670154.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167537 + ... + 167540.

2⁶⁷⁰¹⁵⁴ is an apocalyptic number.

670154 is a deficient number, since it is larger than the sum of its proper divisors (335080).

670154 is a wasteful number, since it uses less digits than its factorization.

670154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335079.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 670154 is about 818.6293422545. The cubic root of 670154 is about 87.5101049554.

The spelling of 670154 in words is "six hundred seventy thousand, one hundred fifty-four".