133940254 has 32 divisors (see below), whose sum is σ = 235710720. Its totient is φ = 55899072.

The previous prime is 133940251. The next prime is 133940309. The reversal of 133940254 is 452049331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133940251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84037 + ... + 85615.

It is an arithmetic number, because the mean of its divisors is an integer number (7365960).

Almost surely, 2^133940254 is an apocalyptic number.

133940254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

133940254 is a deficient number, since it is larger than the sum of its proper divisors (101770466).

133940254 is a wasteful number, since it uses less digits than its factorization.

133940254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 133940254 is about 11573.2559809243. The cubic root of 133940254 is about 511.6469301463.

Adding to 133940254 its reverse (452049331), we get a palindrome (585989585).

The spelling of 133940254 in words is "one hundred thirty-three million, nine hundred forty thousand, two hundred fifty-four".