662151 has 8 divisors (see below), whose sum is σ = 1009024. Its totient is φ = 378360.

The previous prime is 662149. The next prime is 662177. The reversal of 662151 is 151266.

It is a happy number.

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

It is not a de Polignac number, because 662151 - 2¹ = 662149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 31531 = 662151 / (6 + 6 + 2 + 1 + 5 + 1).

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15745 + ... + 15786.

It is an arithmetic number, because the mean of its divisors is an integer number (126128).

2⁶⁶²¹⁵¹ is an apocalyptic number.

662151 is a deficient number, since it is larger than the sum of its proper divisors (346873).

662151 is a wasteful number, since it uses less digits than its factorization.

662151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31541.

The product of its digits is 360, while the sum is 21.

The square root of 662151 is about 813.7266125671. The cubic root of 662151 is about 87.1603595461.

The spelling of 662151 in words is "six hundred sixty-two thousand, one hundred fifty-one".