133116620 has 48 divisors (see below), whose sum is σ = 344059968. Its totient is φ = 42128640.

The previous prime is 133116619. The next prime is 133116637. The reversal of 133116620 is 26611331.

It is a happy 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, 34751 + ... + 38390.

It is an arithmetic number, because the mean of its divisors is an integer number (7167916).

Almost surely, 2^133116620 is an apocalyptic number.

133116620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133116620 is an abundant number, since it is smaller than the sum of its proper divisors (210943348).

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

133116620 is a wasteful number, since it uses less digits than its factorization.

133116620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73170 (or 73168 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 133116620 is about 11537.6176050344. The cubic root of 133116620 is about 510.5960223849.

Adding to 133116620 its reverse (26611331), we get a palindrome (159727951).

The spelling of 133116620 in words is "one hundred thirty-three million, one hundred sixteen thousand, six hundred twenty".