1232135740 has 36 divisors (see below), whose sum is σ = 2844100728. Its totient is φ = 448048480.

The previous prime is 1232135719. The next prime is 1232135743. The reversal of 1232135740 is 475312321.

It is a junction number, because it is equal to n+sod(n) for n = 1232135699 and 1232135708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232135743) 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, 252154 + ... + 256993.

It is an arithmetic number, because the mean of its divisors is an integer number (79002798).

Almost surely, 2^1232135740 is an apocalyptic number.

1232135740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232135740 is an abundant number, since it is smaller than the sum of its proper divisors (1611964988).

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

1232135740 is a wasteful number, since it uses less digits than its factorization.

1232135740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509178 (or 509165 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1232135740 is about 35101.7911223915. The cubic root of 1232135740 is about 1072.0610520197.

The spelling of 1232135740 in words is "one billion, two hundred thirty-two million, one hundred thirty-five thousand, seven hundred forty".