148641 has 4 divisors (see below), whose sum is σ = 198192. Its totient is φ = 99092.

The previous prime is 148639. The next prime is 148663. The reversal of 148641 is 146841.

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: 146841 = 3 ⋅48947.

It is a cyclic number.

It is not a de Polignac number, because 148641 - 2¹ = 148639 is a prime.

It is an Ulam number.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (148691) 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, 24771 + ... + 24776.

It is an arithmetic number, because the mean of its divisors is an integer number (49548).

2¹⁴⁸⁶⁴¹ is an apocalyptic number.

It is an amenable number.

148641 is a deficient number, since it is larger than the sum of its proper divisors (49551).

148641 is an equidigital number, since it uses as much as digits as its factorization.

148641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49550.

The product of its digits is 768, while the sum is 24.

The square root of 148641 is about 385.5398812056. The cubic root of 148641 is about 52.9719799677.

The spelling of 148641 in words is "one hundred forty-eight thousand, six hundred forty-one".