133870120 has 32 divisors (see below), whose sum is σ = 314305920. Its totient is φ = 51219520.

The previous prime is 133870117. The next prime is 133870129. The reversal of 133870120 is 21078331.

It is not an unprimeable number, because it can be changed into a prime (133870129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71836 + ... + 73675.

It is an arithmetic number, because the mean of its divisors is an integer number (9822060).

Almost surely, 2^133870120 is an apocalyptic number.

133870120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133870120 is an abundant number, since it is smaller than the sum of its proper divisors (180435800).

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

133870120 is a wasteful number, since it uses less digits than its factorization.

133870120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145545 (or 145541 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 133870120 is about 11570.2255812063. The cubic root of 133870120 is about 511.5576114396.

The spelling of 133870120 in words is "one hundred thirty-three million, eight hundred seventy thousand, one hundred twenty".