133471550 has 12 divisors (see below), whose sum is σ = 248257176. Its totient is φ = 53388600.

The previous prime is 133471549. The next prime is 133471589. The reversal of 133471550 is 55174331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1334666 + ... + 1334765.

It is an arithmetic number, because the mean of its divisors is an integer number (20688098).

Almost surely, 2^133471550 is an apocalyptic number.

133471550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133471550 is a deficient number, since it is larger than the sum of its proper divisors (114785626).

133471550 is a wasteful number, since it uses less digits than its factorization.

133471550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669443 (or 2669438 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 133471550 is about 11552.9887907848. The cubic root of 133471550 is about 511.0494218587.

The spelling of 133471550 in words is "one hundred thirty-three million, four hundred seventy-one thousand, five hundred fifty".