133042560 has 256 divisors, whose sum is σ = 511142400. Its totient is φ = 28753920.

The previous prime is 133042549. The next prime is 133042583. The reversal of 133042560 is 65240331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 133042560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255100 + ... + 255620.

It is an arithmetic number, because the mean of its divisors is an integer number (1996650).

Almost surely, 2^133042560 is an apocalyptic number.

133042560 is a gapful number since it is divisible by the number (10) 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 133042560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255571200).

133042560 is an abundant number, since it is smaller than the sum of its proper divisors (378099840).

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

133042560 is a wasteful number, since it uses less digits than its factorization.

133042560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 133042560 is about 11534.4076570928. The cubic root of 133042560 is about 510.5013140598.

Adding to 133042560 its reverse (65240331), we get a palindrome (198282891).

The spelling of 133042560 in words is "one hundred thirty-three million, forty-two thousand, five hundred sixty".