133135250605 has 8 divisors (see below), whose sum is σ = 182585486592. Its totient is φ = 91292743248.

The previous prime is 133135250581. The next prime is 133135250609. The reversal of 133135250605 is 506052531331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133135250605 - 2¹³ = 133135242413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133135250609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1901932117 + ... + 1901932186.

It is an arithmetic number, because the mean of its divisors is an integer number (22823185824).

Almost surely, 2^133135250605 is an apocalyptic number.

It is an amenable number.

133135250605 is a deficient number, since it is larger than the sum of its proper divisors (49450235987).

133135250605 is an equidigital number, since it uses as much as digits as its factorization.

133135250605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803864315.

The product of its (nonzero) digits is 40500, while the sum is 34.

Adding to 133135250605 its reverse (506052531331), we get a palindrome (639187781936).

The spelling of 133135250605 in words is "one hundred thirty-three billion, one hundred thirty-five million, two hundred fifty thousand, six hundred five".