133840213145 has 16 divisors (see below), whose sum is σ = 162414724752. Its totient is φ = 105872363520.

The previous prime is 133840213141. The next prime is 133840213159. The reversal of 133840213145 is 541312048331.

It can be written as a sum of positive squares in 8 ways, for example, as 99913520281 + 33926692864 = 316091^2 + 184192^2 .

It is not a de Polignac number, because 133840213145 - 2² = 133840213141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133840213141) 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, 43472 + ... + 519201.

It is an arithmetic number, because the mean of its divisors is an integer number (10150920297).

Almost surely, 2^133840213145 is an apocalyptic number.

It is an amenable number.

133840213145 is a deficient number, since it is larger than the sum of its proper divisors (28574511607).

133840213145 is a wasteful number, since it uses less digits than its factorization.

133840213145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563212.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 133840213145 in words is "one hundred thirty-three billion, eight hundred forty million, two hundred thirteen thousand, one hundred forty-five".