133244140 has 24 divisors (see below), whose sum is σ = 280737072. Its totient is φ = 53121600.

The previous prime is 133244119. The next prime is 133244159. The reversal of 133244140 is 41442331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4711 + ... + 16990.

It is an arithmetic number, because the mean of its divisors is an integer number (11697378).

Almost surely, 2^133244140 is an apocalyptic number.

133244140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133244140 is an abundant number, since it is smaller than the sum of its proper divisors (147492932).

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

133244140 is a wasteful number, since it uses less digits than its factorization.

133244140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22017 (or 22015 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 133244140 is about 11543.1425530485. The cubic root of 133244140 is about 510.7590133638.

Adding to 133244140 its reverse (41442331), we get a palindrome (174686471).

The spelling of 133244140 in words is "one hundred thirty-three million, two hundred forty-four thousand, one hundred forty".