148920665 has 4 divisors (see below), whose sum is σ = 178704804. Its totient is φ = 119136528.

The previous prime is 148920659. The next prime is 148920677. The reversal of 148920665 is 566029841.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46566976 + 102353689 = 6824^2 + 10117^2 .

It is a cyclic number.

It is not a de Polignac number, because 148920665 - 2²⁴ = 132143449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14892062 + ... + 14892071.

It is an arithmetic number, because the mean of its divisors is an integer number (44676201).

Almost surely, 2^148920665 is an apocalyptic number.

It is an amenable number.

148920665 is a deficient number, since it is larger than the sum of its proper divisors (29784139).

148920665 is an equidigital number, since it uses as much as digits as its factorization.

148920665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29784138.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 148920665 is about 12203.3054948239. The cubic root of 148920665 is about 530.0518105278.

The spelling of 148920665 in words is "one hundred forty-eight million, nine hundred twenty thousand, six hundred sixty-five".