• 168457² = 28377760849 is an anagram of the next square 168458² = 28378097764.

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168457 has 2 divisors, whose sum is σ = 168458. Its totient is φ = 168456.

The previous prime is 168451. The next prime is 168463. The reversal of 168457 is 754861.

It is a balanced prime because it is at equal distance from previous prime (168451) and next prime (168463).

It can be written as a sum of positive squares in only one way, i.e., 121801 + 46656 = 349^2 + 216^2 .

It is an emirp because it is prime and its reverse (754861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168457 - 2³ = 168449 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (168451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84228 + 84229.

It is an arithmetic number, because the mean of its divisors is an integer number (84229).

2¹⁶⁸⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

168457 is a deficient number, since it is larger than the sum of its proper divisors (1).

168457 is an equidigital number, since it uses as much as digits as its factorization.

168457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 168457 is about 410.4351349483. The cubic root of 168457 is about 55.2284710999.

It can be divided in two parts, 168 and 457, that added together give a 4-th power (625 = 5⁴).

The spelling of 168457 in words is "one hundred sixty-eight thousand, four hundred fifty-seven".