123732142 has 16 divisors (see below), whose sum is σ = 196050960. Its totient is φ = 58404672.

The previous prime is 123732131. The next prime is 123732151. The reversal of 123732142 is 241237321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5578 + ... + 16690.

It is an arithmetic number, because the mean of its divisors is an integer number (12253185).

Almost surely, 2^123732142 is an apocalyptic number.

123732142 is a deficient number, since it is larger than the sum of its proper divisors (72318818).

123732142 is a wasteful number, since it uses less digits than its factorization.

123732142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11427.

The product of its digits is 2016, while the sum is 25.

The square root of 123732142 is about 11123.4950442745. The cubic root of 123732142 is about 498.3037748140.

Adding to 123732142 its reverse (241237321), we get a palindrome (364969463).

The spelling of 123732142 in words is "one hundred twenty-three million, seven hundred thirty-two thousand, one hundred forty-two".