133520101 has 8 divisors (see below), whose sum is σ = 156862944. Its totient is φ = 112044720.

The previous prime is 133520039. The next prime is 133520137. The reversal of 133520101 is 101025331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133520101 - 2¹³ = 133511909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133520501) 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, 466711 + ... + 466996.

It is an arithmetic number, because the mean of its divisors is an integer number (19607868).

Almost surely, 2^133520101 is an apocalyptic number.

133520101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133520101 is a deficient number, since it is larger than the sum of its proper divisors (23342843).

133520101 is a wasteful number, since it uses less digits than its factorization.

133520101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933731.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 133520101 is about 11555.0898308927. The cubic root of 133520101 is about 511.1113800128. Note that the first 3 decimals are identical.

Adding to 133520101 its reverse (101025331), we get a palindrome (234545432).

The spelling of 133520101 in words is "one hundred thirty-three million, five hundred twenty thousand, one hundred one".