133113510 has 32 divisors (see below), whose sum is σ = 354970080. Its totient is φ = 35496864.

The previous prime is 133113479. The next prime is 133113527. The reversal of 133113510 is 15311331.

133113510 is a `hidden beast` number, since 1 + 3 + 311 + 351 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 246237 + ... + 246776.

It is an arithmetic number, because the mean of its divisors is an integer number (11092815).

Almost surely, 2^133113510 is an apocalyptic number.

133113510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133113510 is an abundant number, since it is smaller than the sum of its proper divisors (221856570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133113510 is a wasteful number, since it uses less digits than its factorization.

133113510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493029 (or 493023 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 133113510 is about 11537.4828277229. The cubic root of 133113510 is about 510.5920460069.

Adding to 133113510 its reverse (15311331), we get a palindrome (148424841).

It can be divided in two parts, 1331 and 13510, that added together give a palindrome (14841).

The spelling of 133113510 in words is "one hundred thirty-three million, one hundred thirteen thousand, five hundred ten".