133455740 has 36 divisors (see below), whose sum is σ = 308056728. Its totient is φ = 48528480.

The previous prime is 133455719. The next prime is 133455743. The reversal of 133455740 is 47554331.

It is a junction number, because it is equal to n+sod(n) for n = 133455697 and 133455706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133455743) 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 11 ways as a sum of consecutive naturals, for example, 25154 + ... + 29993.

Almost surely, 2^133455740 is an apocalyptic number.

133455740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133455740 is an abundant number, since it is smaller than the sum of its proper divisors (174600988).

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

133455740 is a wasteful number, since it uses less digits than its factorization.

133455740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55178 (or 55165 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 133455740 is about 11552.3045319971. The cubic root of 133455740 is about 511.0292427509.

The spelling of 133455740 in words is "one hundred thirty-three million, four hundred fifty-five thousand, seven hundred forty".