133985152169 has 16 divisors (see below), whose sum is σ = 151405830720. Its totient is φ = 117448954560.

The previous prime is 133985152127. The next prime is 133985152201. The reversal of 133985152169 is 961251589331.

It is a cyclic number.

It is not a de Polignac number, because 133985152169 - 2⁸ = 133985151913 is a prime.

It is a super-2 number, since 2×133985152169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133985152169.

It is not an unprimeable number, because it can be changed into a prime (133985152069) 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, 35939 + ... + 518904.

It is an arithmetic number, because the mean of its divisors is an integer number (9462864420).

Almost surely, 2^133985152169 is an apocalyptic number.

It is an amenable number.

133985152169 is a deficient number, since it is larger than the sum of its proper divisors (17420678551).

133985152169 is a wasteful number, since it uses less digits than its factorization.

133985152169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555640.

The product of its digits is 1749600, while the sum is 53.

The spelling of 133985152169 in words is "one hundred thirty-three billion, nine hundred eighty-five million, one hundred fifty-two thousand, one hundred sixty-nine".