133439124 has 96 divisors (see below), whose sum is σ = 387797760. Its totient is φ = 34771968.

The previous prime is 133439093. The next prime is 133439129. The reversal of 133439124 is 421934331.

It is a junction number, because it is equal to n+sod(n) for n = 133439091 and 133439100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133439129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96502 + ... + 97874.

It is an arithmetic number, because the mean of its divisors is an integer number (4039560).

Almost surely, 2^133439124 is an apocalyptic number.

133439124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133439124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193898880).

133439124 is an abundant number, since it is smaller than the sum of its proper divisors (254358636).

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

133439124 is a wasteful number, since it uses less digits than its factorization.

133439124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1487 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 133439124 is about 11551.5853457437. The cubic root of 133439124 is about 511.0080331865.

The spelling of 133439124 in words is "one hundred thirty-three million, four hundred thirty-nine thousand, one hundred twenty-four".