133019915 has 16 divisors (see below), whose sum is σ = 188313600. Its totient is φ = 88270560.

The previous prime is 133019903. The next prime is 133019923. The reversal of 133019915 is 519910331.

It is a happy number.

It is not a de Polignac number, because 133019915 - 2⁶ = 133019851 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60215 + ... + 62384.

It is an arithmetic number, because the mean of its divisors is an integer number (11769600).

Almost surely, 2^133019915 is an apocalyptic number.

133019915 is a deficient number, since it is larger than the sum of its proper divisors (55293685).

133019915 is a wasteful number, since it uses less digits than its factorization.

133019915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122642.

The product of its (nonzero) digits is 3645, while the sum is 32.

The square root of 133019915 is about 11533.4259871037. The cubic root of 133019915 is about 510.4723484962.

The spelling of 133019915 in words is "one hundred thirty-three million, nineteen thousand, nine hundred fifteen".