141665123 has 4 divisors (see below), whose sum is σ = 141731520. Its totient is φ = 141598728.

The previous prime is 141665107. The next prime is 141665137. The reversal of 141665123 is 321566141.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 141665123 - 2⁴ = 141665107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141665143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29888 + ... + 34301.

It is an arithmetic number, because the mean of its divisors is an integer number (35432880).

Almost surely, 2^141665123 is an apocalyptic number.

141665123 is a deficient number, since it is larger than the sum of its proper divisors (66397).

141665123 is an equidigital number, since it uses as much as digits as its factorization.

141665123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66396.

The product of its digits is 4320, while the sum is 29.

The square root of 141665123 is about 11902.3158670907. The cubic root of 141665123 is about 521.2999072726.

The spelling of 141665123 in words is "one hundred forty-one million, six hundred sixty-five thousand, one hundred twenty-three".