133918507009 has 32 divisors (see below), whose sum is σ = 168876933120. Its totient is φ = 103662979200.

The previous prime is 133918507001. The next prime is 133918507049. The reversal of 133918507009 is 900705819331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 133918507009 - 2³ = 133918507001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133918507009.

It is not an unprimeable number, because it can be changed into a prime (133918507001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122589 + ... + 531850.

It is an arithmetic number, because the mean of its divisors is an integer number (5277404160).

Almost surely, 2^133918507009 is an apocalyptic number.

It is an amenable number.

133918507009 is a deficient number, since it is larger than the sum of its proper divisors (34958426111).

133918507009 is a wasteful number, since it uses less digits than its factorization.

133918507009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654541.

The product of its (nonzero) digits is 204120, while the sum is 46.

The spelling of 133918507009 in words is "one hundred thirty-three billion, nine hundred eighteen million, five hundred seven thousand, nine".