133136620 has 24 divisors (see below), whose sum is σ = 281156400. Its totient is φ = 52955712.

The previous prime is 133136617. The next prime is 133136621. The reversal of 133136620 is 26631331.

It is not an unprimeable number, because it can be changed into a prime (133136621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15015 + ... + 22174.

It is an arithmetic number, because the mean of its divisors is an integer number (11714850).

Almost surely, 2^133136620 is an apocalyptic number.

133136620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133136620 is an abundant number, since it is smaller than the sum of its proper divisors (148019780).

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

133136620 is a wasteful number, since it uses less digits than its factorization.

133136620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37377 (or 37375 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 133136620 is about 11538.4843025416. The cubic root of 133136620 is about 510.6215924679.

Adding to 133136620 its reverse (26631331), we get a palindrome (159767951).

The spelling of 133136620 in words is "one hundred thirty-three million, one hundred thirty-six thousand, six hundred twenty".