133400115 has 40 divisors (see below), whose sum is σ = 249546528. Its totient is φ = 68048640.

The previous prime is 133400089. The next prime is 133400117. The reversal of 133400115 is 511004331.

It is not a de Polignac number, because 133400115 - 2¹⁸ = 133137971 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (133400117) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2155 + ... + 16475.

Almost surely, 2^133400115 is an apocalyptic number.

133400115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133400115 is a deficient number, since it is larger than the sum of its proper divisors (116146413).

133400115 is a wasteful number, since it uses less digits than its factorization.

133400115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14361 (or 14352 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 133400115 is about 11549.8967527853. The cubic root of 133400115 is about 510.9582330615.

Adding to 133400115 its reverse (511004331), we get a palindrome (644404446).

The spelling of 133400115 in words is "one hundred thirty-three million, four hundred thousand, one hundred fifteen".