133436534401 has 4 divisors (see below), whose sum is σ = 134660722900. Its totient is φ = 132212345904.

The previous prime is 133436534389. The next prime is 133436534459. The reversal of 133436534401 is 104435634331.

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 82369574001 + 51066960400 = 287001^2 + 225980^2 .

It is a cyclic number.

It is not a de Polignac number, because 133436534401 - 2²¹ = 133434437249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133436534471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612094086 + ... + 612094303.

It is an arithmetic number, because the mean of its divisors is an integer number (33665180725).

Almost surely, 2^133436534401 is an apocalyptic number.

It is an amenable number.

133436534401 is a deficient number, since it is larger than the sum of its proper divisors (1224188499).

133436534401 is a wasteful number, since it uses less digits than its factorization.

133436534401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224188498.

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 133436534401 in words is "one hundred thirty-three billion, four hundred thirty-six million, five hundred thirty-four thousand, four hundred one".