148665841 has 4 divisors (see below), whose sum is σ = 151828992. Its totient is φ = 145502692.

The previous prime is 148665827. The next prime is 148665857. The reversal of 148665841 is 148566841.

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: 148566841 = 547 ⋅271603.

It is a cyclic number.

It is not a de Polignac number, because 148665841 - 2¹⁵ = 148633073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148665241) 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, 1581505 + ... + 1581598.

It is an arithmetic number, because the mean of its divisors is an integer number (37957248).

Almost surely, 2^148665841 is an apocalyptic number.

It is an amenable number.

148665841 is a deficient number, since it is larger than the sum of its proper divisors (3163151).

148665841 is an equidigital number, since it uses as much as digits as its factorization.

148665841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163150.

The product of its digits is 184320, while the sum is 43.

The square root of 148665841 is about 12192.8602468822. The cubic root of 148665841 is about 529.7493070952.

The spelling of 148665841 in words is "one hundred forty-eight million, six hundred sixty-five thousand, eight hundred forty-one".