133020129 has 24 divisors (see below), whose sum is σ = 200427552. Its totient is φ = 77822080.

The previous prime is 133020119. The next prime is 133020137. The reversal of 133020129 is 921020331.

It is a happy number.

It is not a de Polignac number, because 133020129 - 2⁷ = 133020001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133020119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25357 + ... + 30149.

It is an arithmetic number, because the mean of its divisors is an integer number (8351148).

Almost surely, 2^133020129 is an apocalyptic number.

It is an amenable number.

133020129 is a deficient number, since it is larger than the sum of its proper divisors (67407423).

133020129 is a wasteful number, since it uses less digits than its factorization.

133020129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4865 (or 4836 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 133020129 is about 11533.4352644821. The cubic root of 133020129 is about 510.4726222422.

The spelling of 133020129 in words is "one hundred thirty-three million, twenty thousand, one hundred twenty-nine".