133135350425 has 24 divisors (see below), whose sum is σ = 205823796672. Its totient is φ = 82993464000.

The previous prime is 133135350421. The next prime is 133135350443. The reversal of 133135350425 is 524053531331.

It is a happy number.

It is not a de Polignac number, because 133135350425 - 2² = 133135350421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133135350421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34578686 + ... + 34582535.

It is an arithmetic number, because the mean of its divisors is an integer number (8575991528).

Almost surely, 2^133135350425 is an apocalyptic number.

It is an amenable number.

133135350425 is a deficient number, since it is larger than the sum of its proper divisors (72688446247).

133135350425 is a wasteful number, since it uses less digits than its factorization.

133135350425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69161249 (or 69161244 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 35.

Adding to 133135350425 its reverse (524053531331), we get a palindrome (657188881756).

The spelling of 133135350425 in words is "one hundred thirty-three billion, one hundred thirty-five million, three hundred fifty thousand, four hundred twenty-five".