133542256 has 40 divisors (see below), whose sum is σ = 264090240. Its totient is φ = 65402304.

The previous prime is 133542251. The next prime is 133542263. The reversal of 133542256 is 652245331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133542251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371805 + ... + 372163.

It is an arithmetic number, because the mean of its divisors is an integer number (6602256).

Almost surely, 2^133542256 is an apocalyptic number.

133542256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133542256 is a deficient number, since it is larger than the sum of its proper divisors (130547984).

133542256 is a wasteful number, since it uses less digits than its factorization.

133542256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 775 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 133542256 is about 11556.0484595730. The cubic root of 133542256 is about 511.1396480321.

Adding to 133542256 its reverse (652245331), we get a palindrome (785787587).

The spelling of 133542256 in words is "one hundred thirty-three million, five hundred forty-two thousand, two hundred fifty-six".