133115415 has 16 divisors (see below), whose sum is σ = 215986176. Its totient is φ = 69994400.

The previous prime is 133115413. The next prime is 133115441. The reversal of 133115415 is 514511331.

It is not a de Polignac number, because 133115415 - 2¹ = 133115413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133115413) 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, 61431 + ... + 63560.

It is an arithmetic number, because the mean of its divisors is an integer number (13499136).

Almost surely, 2^133115415 is an apocalyptic number.

133115415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133115415 is a deficient number, since it is larger than the sum of its proper divisors (82870761).

133115415 is a wasteful number, since it uses less digits than its factorization.

133115415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125070.

The product of its digits is 900, while the sum is 24.

The square root of 133115415 is about 11537.5653844301. The cubic root of 133115415 is about 510.5944817056.

Adding to 133115415 its reverse (514511331), we get a palindrome (647626746).

The spelling of 133115415 in words is "one hundred thirty-three million, one hundred fifteen thousand, four hundred fifteen".