123345142 has 8 divisors (see below), whose sum is σ = 185976936. Its totient is φ = 61352832.

The previous prime is 123345137. The next prime is 123345143. The reversal of 123345142 is 241543321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123345143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159388 + ... + 160159.

It is an arithmetic number, because the mean of its divisors is an integer number (23247117).

Almost surely, 2^123345142 is an apocalyptic number.

123345142 is a deficient number, since it is larger than the sum of its proper divisors (62631794).

123345142 is a wasteful number, since it uses less digits than its factorization.

123345142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319742.

The product of its digits is 2880, while the sum is 25.

The square root of 123345142 is about 11106.0858091409. The cubic root of 123345142 is about 497.7837133284.

Adding to 123345142 its reverse (241543321), we get a palindrome (364888463).

The spelling of 123345142 in words is "one hundred twenty-three million, three hundred forty-five thousand, one hundred forty-two".