662157 has 24 divisors (see below), whose sum is σ = 1029600. Its totient is φ = 409248.

The previous prime is 662149. The next prime is 662177. The reversal of 662157 is 751266.

It is not a de Polignac number, because 662157 - 2³ = 662149 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 662157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11194 + ... + 11252.

It is an arithmetic number, because the mean of its divisors is an integer number (42900).

2⁶⁶²¹⁵⁷ is an apocalyptic number.

It is an amenable number.

662157 is a deficient number, since it is larger than the sum of its proper divisors (367443).

662157 is a wasteful number, since it uses less digits than its factorization.

662157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 134 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 662157 is about 813.7302993007. The cubic root of 662157 is about 87.1606228096.

The spelling of 662157 in words is "six hundred sixty-two thousand, one hundred fifty-seven".