133552461 has 16 divisors (see below), whose sum is σ = 203673600. Its totient is φ = 76253808.

The previous prime is 133552439. The next prime is 133552481. The reversal of 133552461 is 164255331.

It is not a de Polignac number, because 133552461 - 2⁵ = 133552429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133552481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41260 + ... + 44378.

It is an arithmetic number, because the mean of its divisors is an integer number (12729600).

Almost surely, 2^133552461 is an apocalyptic number.

It is an amenable number.

133552461 is a deficient number, since it is larger than the sum of its proper divisors (70121139).

133552461 is a wasteful number, since it uses less digits than its factorization.

133552461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5168.

The product of its digits is 10800, while the sum is 30.

The square root of 133552461 is about 11556.4899948038. The cubic root of 133552461 is about 511.1526677493.

The spelling of 133552461 in words is "one hundred thirty-three million, five hundred fifty-two thousand, four hundred sixty-one".