133810940 has 48 divisors (see below), whose sum is σ = 286826400. Its totient is φ = 52427520.

The previous prime is 133810909. The next prime is 133810951. The reversal of 133810940 is 49018331.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 247070 + ... + 247610.

It is an arithmetic number, because the mean of its divisors is an integer number (5975550).

Almost surely, 2^133810940 is an apocalyptic number.

133810940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133810940 is an abundant number, since it is smaller than the sum of its proper divisors (153015460).

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

133810940 is a wasteful number, since it uses less digits than its factorization.

133810940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 133810940 is about 11567.6678721340. The cubic root of 133810940 is about 511.4822188585.

The spelling of 133810940 in words is "one hundred thirty-three million, eight hundred ten thousand, nine hundred forty".