133040121 has 16 divisors (see below), whose sum is σ = 182168448. Its totient is φ = 86313600.

The previous prime is 133040101. The next prime is 133040177. The reversal of 133040121 is 121040331.

It is not a de Polignac number, because 133040121 - 2⁹ = 133039609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133040121.

It is not an unprimeable number, because it can be changed into a prime (133040101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58791 + ... + 61011.

It is an arithmetic number, because the mean of its divisors is an integer number (11385528).

Almost surely, 2^133040121 is an apocalyptic number.

It is an amenable number.

133040121 is a deficient number, since it is larger than the sum of its proper divisors (49128327).

133040121 is a wasteful number, since it uses less digits than its factorization.

133040121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 133040121 is about 11534.3019294624. The cubic root of 133040121 is about 510.4981944558.

Adding to 133040121 its reverse (121040331), we get a palindrome (254080452).

The spelling of 133040121 in words is "one hundred thirty-three million, forty thousand, one hundred twenty-one".