1235423142 has 24 divisors (see below), whose sum is σ = 2769053040. Its totient is φ = 397607280.

The previous prime is 1235423131. The next prime is 1235423143. The reversal of 1235423142 is 2413245321.

1235423142 is a `hidden beast` number, since 1 + 235 + 423 + 1 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235423143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1182834 + ... + 1183877.

It is an arithmetic number, because the mean of its divisors is an integer number (115377210).

Almost surely, 2^1235423142 is an apocalyptic number.

1235423142 is an abundant number, since it is smaller than the sum of its proper divisors (1533629898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1235423142 is a wasteful number, since it uses less digits than its factorization.

1235423142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366748 (or 2366745 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 1235423142 is about 35148.5866287679. The cubic root of 1235423142 is about 1073.0136434795.

Adding to 1235423142 its reverse (2413245321), we get a palindrome (3648668463).

The spelling of 1235423142 in words is "one billion, two hundred thirty-five million, four hundred twenty-three thousand, one hundred forty-two".