133487415 has 24 divisors (see below), whose sum is σ = 231920208. Its totient is φ = 71026560.

The previous prime is 133487411. The next prime is 133487447. The reversal of 133487415 is 514784331.

It is a happy number.

133487415 is a `hidden beast` number, since 133 + 487 + 41 + 5 = 666.

It is not a de Polignac number, because 133487415 - 2² = 133487411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133487415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133487411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17320 + ... + 23810.

It is an arithmetic number, because the mean of its divisors is an integer number (9663342).

Almost surely, 2^133487415 is an apocalyptic number.

133487415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133487415 is a deficient number, since it is larger than the sum of its proper divisors (98432793).

133487415 is a wasteful number, since it uses less digits than its factorization.

133487415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6959 (or 6956 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 133487415 is about 11553.6753892430. The cubic root of 133487415 is about 511.0696695641.

The spelling of 133487415 in words is "one hundred thirty-three million, four hundred eighty-seven thousand, four hundred fifteen".