148657 has 4 divisors (see below), whose sum is σ = 151156. Its totient is φ = 146160.

The previous prime is 148639. The next prime is 148663. The reversal of 148657 is 756841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 756841 = 47 ⋅16103.

It can be written as a sum of positive squares in 2 ways, for example, as 69696 + 78961 = 264^2 + 281^2 .

It is a cyclic number.

It is not a de Polignac number, because 148657 - 2¹¹ = 146609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158 + ... + 1279.

It is an arithmetic number, because the mean of its divisors is an integer number (37789).

2¹⁴⁸⁶⁵⁷ is an apocalyptic number.

It is an amenable number.

148657 is a deficient number, since it is larger than the sum of its proper divisors (2499).

148657 is an equidigital number, since it uses as much as digits as its factorization.

148657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498.

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

The square root of 148657 is about 385.5606307703. The cubic root of 148657 is about 52.9738805677.

The spelling of 148657 in words is "one hundred forty-eight thousand, six hundred fifty-seven".