133523325401 has 4 divisors (see below), whose sum is σ = 133524687012. Its totient is φ = 133521963792.

The previous prime is 133523325389. The next prime is 133523325451. The reversal of 133523325401 is 104523325331.

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 34031025625 + 99492299776 = 184475^2 + 315424^2 .

It is a cyclic number.

It is not a de Polignac number, because 133523325401 - 2⁶ = 133523325337 is a prime.

It is a super-2 number, since 2×133523325401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133523325451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521246 + ... + 733991.

It is an arithmetic number, because the mean of its divisors is an integer number (33381171753).

Almost surely, 2^133523325401 is an apocalyptic number.

It is an amenable number.

133523325401 is a deficient number, since it is larger than the sum of its proper divisors (1361611).

133523325401 is a wasteful number, since it uses less digits than its factorization.

133523325401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361610.

The product of its (nonzero) digits is 32400, while the sum is 32.

The spelling of 133523325401 in words is "one hundred thirty-three billion, five hundred twenty-three million, three hundred twenty-five thousand, four hundred one".