133572625121 has 4 divisors (see below), whose sum is σ = 143847442452. Its totient is φ = 123297807792.

The previous prime is 133572625073. The next prime is 133572625159. The reversal of 133572625121 is 121526275331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6169317025 + 127403308096 = 78545^2 + 356936^2 .

It is a cyclic number.

It is not a de Polignac number, because 133572625121 - 2⁶ = 133572625057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133572625421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5137408646 + ... + 5137408671.

It is an arithmetic number, because the mean of its divisors is an integer number (35961860613).

Almost surely, 2^133572625121 is an apocalyptic number.

It is an amenable number.

133572625121 is a deficient number, since it is larger than the sum of its proper divisors (10274817331).

133572625121 is a wasteful number, since it uses less digits than its factorization.

133572625121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10274817330.

The product of its digits is 75600, while the sum is 38.

The spelling of 133572625121 in words is "one hundred thirty-three billion, five hundred seventy-two million, six hundred twenty-five thousand, one hundred twenty-one".