133142140 has 12 divisors (see below), whose sum is σ = 279598536. Its totient is φ = 53256848.

The previous prime is 133142081. The next prime is 133142143. The reversal of 133142140 is 41241331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133142143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3328534 + ... + 3328573.

It is an arithmetic number, because the mean of its divisors is an integer number (23299878).

Almost surely, 2^133142140 is an apocalyptic number.

133142140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133142140 is an abundant number, since it is smaller than the sum of its proper divisors (146456396).

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

133142140 is a wasteful number, since it uses less digits than its factorization.

133142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6657116 (or 6657114 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 133142140 is about 11538.7234995904. The cubic root of 133142140 is about 510.6286493599.

Adding to 133142140 its reverse (41241331), we get a palindrome (174383471).

The spelling of 133142140 in words is "one hundred thirty-three million, one hundred forty-two thousand, one hundred forty".