123132142 has 16 divisors (see below), whose sum is σ = 211236480. Its totient is φ = 52732728.

The previous prime is 123132137. The next prime is 123132157. The reversal of 123132142 is 241231321.

It is a happy number.

It is a super-3 number, since 3×123132142³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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, 26209 + ... + 30547.

It is an arithmetic number, because the mean of its divisors is an integer number (13202280).

Almost surely, 2^123132142 is an apocalyptic number.

123132142 is a deficient number, since it is larger than the sum of its proper divisors (88104338).

123132142 is a wasteful number, since it uses less digits than its factorization.

123132142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375.

The product of its digits is 288, while the sum is 19.

The square root of 123132142 is about 11096.4923286595. The cubic root of 123132142 is about 497.4970136938.

Adding to 123132142 its reverse (241231321), we get a palindrome (364363463).

The spelling of 123132142 in words is "one hundred twenty-three million, one hundred thirty-two thousand, one hundred forty-two".