669151 has 8 divisors (see below), whose sum is σ = 772640. Its totient is φ = 567648.

The previous prime is 669133. The next prime is 669167. The reversal of 669151 is 151966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 669151 - 2⁷ = 669023 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 (669121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325 + ... + 1201.

It is an arithmetic number, because the mean of its divisors is an integer number (96580).

2⁶⁶⁹¹⁵¹ is an apocalyptic number.

669151 is a deficient number, since it is larger than the sum of its proper divisors (103489).

669151 is a wasteful number, since it uses less digits than its factorization.

669151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993.

The product of its digits is 1620, while the sum is 28.

The square root of 669151 is about 818.0165035010. The cubic root of 669151 is about 87.4664252138.

It can be divided in two parts, 669 and 151, that added together give a triangular number (820 = T₄₀).

The spelling of 669151 in words is "six hundred sixty-nine thousand, one hundred fifty-one".