133344140 has 12 divisors (see below), whose sum is σ = 280022736. Its totient is φ = 53337648.

The previous prime is 133344103. The next prime is 133344151. The reversal of 133344140 is 41443331.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333584 + ... + 3333623.

It is an arithmetic number, because the mean of its divisors is an integer number (23335228).

Almost surely, 2^133344140 is an apocalyptic number.

133344140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133344140 is an abundant number, since it is smaller than the sum of its proper divisors (146678596).

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

133344140 is a wasteful number, since it uses less digits than its factorization.

133344140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667216 (or 6667214 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 133344140 is about 11547.4733167044. The cubic root of 133344140 is about 510.8867566405.

Adding to 133344140 its reverse (41443331), we get a palindrome (174787471).

The spelling of 133344140 in words is "one hundred thirty-three million, three hundred forty-four thousand, one hundred forty".