133116020 has 12 divisors (see below), whose sum is σ = 279543684. Its totient is φ = 53246400.

The previous prime is 133115987. The next prime is 133116029. The reversal of 133116020 is 20611331.

It can be written as a sum of positive squares in 2 ways, for example, as 29116816 + 103999204 = 5396^2 + 10198^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133116020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133116029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3327881 + ... + 3327920.

It is an arithmetic number, because the mean of its divisors is an integer number (23295307).

Almost surely, 2^133116020 is an apocalyptic number.

133116020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133116020 is an abundant number, since it is smaller than the sum of its proper divisors (146427664).

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

133116020 is a wasteful number, since it uses less digits than its factorization.

133116020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6655810 (or 6655808 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 133116020 is about 11537.5916031033. The cubic root of 133116020 is about 510.5952552429.

Adding to 133116020 its reverse (20611331), we get a palindrome (153727351).

The spelling of 133116020 in words is "one hundred thirty-three million, one hundred sixteen thousand, twenty".