146257 has 4 divisors (see below), whose sum is σ = 152640. Its totient is φ = 139876.

The previous prime is 146249. The next prime is 146273. The reversal of 146257 is 752641.

146257 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 752641 = 17 ⋅44273.

It is a cyclic number.

It is not a de Polignac number, because 146257 - 2³ = 146249 is a prime.

It is a super-2 number, since 2×146257² = 42782220098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3157 + ... + 3202.

It is an arithmetic number, because the mean of its divisors is an integer number (38160).

2¹⁴⁶²⁵⁷ is an apocalyptic number.

It is an amenable number.

146257 is a deficient number, since it is larger than the sum of its proper divisors (6383).

146257 is an equidigital number, since it uses as much as digits as its factorization.

146257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6382.

The product of its digits is 1680, while the sum is 25.

The square root of 146257 is about 382.4356154963. The cubic root of 146257 is about 52.6872527190.

Adding to 146257 its reverse (752641), we get a palindrome (898898).

The spelling of 146257 in words is "one hundred forty-six thousand, two hundred fifty-seven".