133154380 has 24 divisors (see below), whose sum is σ = 279852048. Its totient is φ = 53218368.

The previous prime is 133154377. The next prime is 133154381. The reversal of 133154380 is 83451331.

It is not an unprimeable number, because it can be changed into a prime (133154381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35767 + ... + 39313.

It is an arithmetic number, because the mean of its divisors is an integer number (11660502).

Almost surely, 2^133154380 is an apocalyptic number.

133154380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133154380 is an abundant number, since it is smaller than the sum of its proper divisors (146697668).

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

133154380 is a wasteful number, since it uses less digits than its factorization.

133154380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5433 (or 5431 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 133154380 is about 11539.2538753595. The cubic root of 133154380 is about 510.6442965551.

The spelling of 133154380 in words is "one hundred thirty-three million, one hundred fifty-four thousand, three hundred eighty".