123156141 has 8 divisors (see below), whose sum is σ = 164401920. Its totient is φ = 82007232.

The previous prime is 123156107. The next prime is 123156151. The reversal of 123156141 is 141651321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123156141 - 2⁹ = 123155629 is a prime.

It is a super-3 number, since 3×123156141³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123156151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21196 + ... + 26373.

It is an arithmetic number, because the mean of its divisors is an integer number (20550240).

Almost surely, 2^123156141 is an apocalyptic number.

It is an amenable number.

123156141 is a deficient number, since it is larger than the sum of its proper divisors (41245779).

123156141 is an equidigital number, since it uses as much as digits as its factorization.

123156141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48435.

The product of its digits is 720, while the sum is 24.

The square root of 123156141 is about 11097.5736537317. The cubic root of 123156141 is about 497.5293330516.

The spelling of 123156141 in words is "one hundred twenty-three million, one hundred fifty-six thousand, one hundred forty-one".